Mozilla CSS support chart

  • Revision slug: Mozilla_CSS_support_chart
  • Revision title: Mozilla CSS support chart
  • Revision id: 287358
  • Created:
  • Creator: ethertank
  • Is current revision? No
  • Comment + ja; 10 words added, 4 words removed

Revision Content

This page lists supported CSS selectors, properties, @-rules, Media queries and values in alphabetical order.

The "supported since" column indicates the Gecko version number in which support was introduced; versions prior to Gecko 1.0 are listed as 1.0.

Gecko is the rendering engine used in Firefox and other applications; please see Gecko for more information about Firefox and Gecko version numbers.

The "specification" column links to one of the specifications in which the feature was specified:  generally the newest one at the time of writing.  However, in many cases, the feature in also specified in other specifications, both older and newer.  This should probably be fixed to link to all relevant specifications.

Mozilla CSS extensions (those prefixed with -moz-) are mentioned in the "Notes" column to provide bug numbers and other hints regarding CSS support.

Warning: Various specifications are still Working Drafts and several properties can be deleted, changed or renamed.

If you think you have found a bug in Mozilla's CSS support, please create a minimal test case and file a bug. Make sure you search through existing bugs first.

This chart refers to the CSS 2.1 Specification and current drafts by the CSS Workgroup.

Selectors

Selector Specification Supported Supported since Notes
Basic Selectors
Universal Selector * CSS 3 (Selectors) Yes 1.0 -
Type selector element CSS 3 (Selectors) Yes 1.0 -
Class selector .class CSS 3 (Selectors) Yes 1.0 -
ID selector #id CSS 3 (Selectors) Yes 1.0 -
Attribute selectors [attribute="value"] CSS 3 (Selectors) Yes 1.0 -
Combinators
Descendant selector E F CSS 3 (Selectors) Yes 1.0 -
Child selector E > F CSS 3 (Selectors) Yes 1.0 -
Adjacent sibling selector E + F CSS 3 (Selectors) Yes 1.0 -
General sibling selectors E ~ F CSS 3 (Selectors) Yes 1.0 -
Pseudo-elements
:after (::after) CSS 3 (Selectors) Yes 1.0 (1.5) Syntax with two colons (::) is supported since Gecko 1.5
:before (::before) CSS 3 (Selectors) Yes 1.0 (1.5)
:first-letter (::first-letter) CSS 3 (Selectors) Yes 1.0 (1.5)
:first-line (::first-line) CSS 3 (Selectors) Yes 1.0 (1.5)
::selection CSS 3 (Selectors) No - ::-moz-selection is supported since Gecko 1.5
Dynamic pseudo-classes
:link CSS 3 (Selectors) Yes 1.0 -
:visited CSS 3 (Selectors) Yes 1.0 -
:active CSS 3 (Selectors) Yes 1.0 -
:hover CSS 3 (Selectors) Yes 1.0 -
:focus CSS 3 (Selectors) Yes 1.0 -
Structural pseudo-classes
:root CSS 3 (Selectors) Yes 1.0 -
:empty CSS 3 (Selectors) Yes 1.0 Since Gecko 1.8 an element containing spaces does not longer match :empty
:first-child CSS 3 (Selectors) Yes 1.0 -
:last-child CSS 3 (Selectors) Yes 1.0 -
:only-child CSS 3 (Selectors) Yes 1.8 -
:first-of-type CSS 3 (Selectors) Yes 1.9.1 -
:last-of-type CSS 3 (Selectors) Yes 1.9.1 -
:only-of-type CSS 3 (Selectors) Yes 1.9.1 -
:nth-child CSS 3 (Selectors) Yes 1.9.1 -
:nth-last-child CSS 3 (Selectors) Yes 1.9.1 -
:nth-of-type CSS 3 (Selectors) Yes 1.9.1 -
:nth-last-of-type CSS 3 (Selectors) Yes 1.9.1 -
UI pseudo-classes
:enabled CSS 3 (Selectors) Yes 1.1 -
:disabled CSS 3 (Selectors) Yes 1.1 -
:check CSS 3 (Selectors) Yes 1.1 -
:indeterminate CSS 3 (Selectors) Yes 1.9.2 -
:default CSS 3 (UI) Yes 1.9 -
:valid CSS 3 (UI) Yes 2.0 -
:invalid CSS 3 (UI) Yes 2.0 -
:in-range CSS 3 (UI) No - -
:out-of-range CSS 3 (UI) No - -
:required CSS 3 (UI) Yes 2.0 -
:optional CSS 3 (UI) Yes 2.0 -
:read-only CSS 3 (UI) No - -
:read-write CSS 3 (UI) No - -
::value CSS 3 (UI) No - -
::choices CSS 3 (UI) No - -
::repeat-item CSS 3 (UI) No - -
::repeat-index CSS 3 (UI) No - -
Other pseudo-classes
:lang CSS 3 (Selectors) Yes 1.2 -
:not CSS 3 (Selectors) Yes 1.0 -
:target CSS 3 (Selectors) Yes 1.3 -

Properties

Property Specification Supported Supported since Notes
animation CSS 3 (Animations) No - -moz-animation is supported since Gecko 5.0.
animation-delay CSS 3 (Animations) No - -moz-animation-delay is supported since Gecko 5.0.
animation-direction CSS 3 (Animations) No - -moz-animation-direction is supported since Gecko 5.0.
animation-duration CSS 3 (Animations) No - -moz-animation-duration is supported since Gecko 5.0.
animation-fill-mode CSS 3 (Animations) No - -moz-animation-fill-mode is supported since Gecko 5.0.
animation-iteration-count CSS 3 (Animations) No - -moz-animation-iteration-count is supported since Gecko 5.0.
animation-name CSS 3 (Animations) No - -moz-animation-name is supported since Gecko 5.0.
animation-play-state CSS 3 (Animations) No - -moz-animation-play-state is supported since Gecko 5.0.
animation-timing-function CSS 3 (Animations) No - -moz-animation-timing-function is supported since Gecko 5.0.
appearance CSS 3 (UI) No - -moz-appearance is supported since Gecko 1.0.
background CSS 3 (Background) Yes 1.0 (1.9.2) Multiple backgrounds are supported since Gecko 1.9.2.
background-attachment CSS 3 (Background) Yes 1.0 (1.9.2)
background-clip CSS 3 (Background) Yes 2.0 -moz-background-clip was supported since Gecko 1.2 till 1.9.2.
background-color CSS 3 (Background) Yes 1.0 -
background-image CSS 3 (Background) Yes 1.0 (1.9.2) Multiple backgrounds are supported since Gecko 1.9.2.
background-origin CSS 3 (Background) Yes 2.0 -moz-background-origin was supported since Gecko 1.2 till 1.9.2.
background-position CSS 3 (Background) Yes 1.0 (1.9.2) Multiple backgrounds are supported since Gecko 1.9.2.
background-repeat CSS 3 (Background) Yes 1.0 (1.9.2)
background-size CSS 3 (Background) Yes 2.0 -moz-background-size was supported in Gecko 1.9.2.
border CSS 3 (Background) Yes 1.0 -
border-bottom CSS 3 (Background) Yes 1.0 -
border-bottom-color CSS 3 (Background) Yes 1.0 -
border-bottom-left-radius CSS 3 (Background) Yes 2.0 -moz-border-radius-bottomleft is supported since Gecko 1.0.
border-bottom-right-radius CSS 3 (Background) Yes 2.0 -moz-border-radius-bottomright is supported since Gecko 1.0.
border-bottom-style CSS 3 (Background) Yes 1.0 -
border-bottom-width CSS 3 (Background) Yes 1.0 -
border-collapse CSS 2.1 Yes 1.0 -
border-color CSS 3 (Background) Yes 1.0 -
border-image CSS 3 (Background) No - -moz-border-image is supported since Gecko 1.9.1, but differs from current specification. See {{ Bug(497995) }}.
border-image-outset CSS 3 (Background) No - -
border-image-repeat CSS 3 (Background) No - -
border-image-slice CSS 3 (Background) No - -
border-image-source CSS 3 (Background) No - -
border-image-width CSS 3 (Background) No - -
border-left CSS 3 (Background) Yes 1.0 -
border-left-color CSS 3 (Background) Yes 1.0 -
border-left-style CSS 3 (Background) Yes 1.0 -
border-left-width CSS 3 (Background) Yes 1.0 -
border-radius CSS 3 (Background) Yes 2.0 -moz-border-radius is supported since Gecko 1.0.
border-right CSS 3 (Background) Yes 1.0 -
border-right-color CSS 3 (Background) Yes 1.0 -
border-right-style CSS 3 (Background) Yes 1.0 -
border-right-width CSS 3 (Background) Yes 1.0 -
border-spacing CSS 2.1 Yes 1.0 -
border-style CSS 3 (Background) Yes 1.0 -
border-top CSS 3 (Background) Yes 1.0 -
border-top-color CSS 3 (Background) Yes 1.0 -
border-top-left-radius CSS 3 (Background) Yes 2.0 -moz-border-radius-topleft is supported since Gecko 1.0.
border-top-right-radius CSS 3 (Background) Yes 2.0 -moz-border-radius-topright is supported since Gecko 1.0.
border-top-style CSS 3 (Background) Yes 1.0 -
border-top-width CSS 3 (Background) Yes 1.0 -
border-width CSS 3 (Background) Yes 1.0 -
bottom CSS 2.1 Yes 1.0 -
box-align CSS 3 (Flexbox) No - -moz-box-align is supported since Gecko 1.0.
box-decoration-break CSS 3 (Background) No - -
box-direction CSS 3 (Flexbox) No - -moz-box-direction is supported since Gecko 1.0.
box-flex CSS 3 (Flexbox) No - -moz-box-flex is supported since Gecko 1.0.
box-flex-group CSS 3 (Flexbox) No - -moz-box-flex-group is supported since Gecko 1.0.
box-lines CSS 3 (Flexbox) No - -
box-ordinal-group CSS 3 (Flexbox) No - -moz-box-ordinal-group is supported since Gecko 1.0.
box-orient CSS 3 (Flexbox) No - -moz-box-orient is supported since Gecko 1.0.
box-pack CSS 3 (Flexbox) No - -moz-box-pack is supported since Gecko 1.0.
box-shadow CSS 3 (Background) Yes 2.0 -moz-box-shadow is supported since Gecko 1.9.1.
box-sizing CSS 3 (UI) No - -moz-box-sizing is supported since Gecko 1.0.
caption-side CSS 2.1 Yes 1.4 -
clear CSS 2.1 Yes 1.0 -
clip CSS 2.1 Yes 1.0 -
color CSS 3 (Color) Yes 1.0 -
column-count CSS 3 (MultiCol) No - -moz-column-count is supported since Gecko 1.8.
column-fill CSS 3 (MultiCol) No - -moz-column-fill is supported since Gecko 13.0.
column-gap CSS 3 (MultiCol) No - -moz-column-gap is supported since Gecko 1.8.
column-rule CSS 3 (MultiCol) No - -moz-column-rule is supported since Gecko 1.9.1.
column-rule-color CSS 3 (MultiCol) No - -moz-column-rule-color is supported since Gecko 1.9.1.
column-rule-style CSS 3 (MutliCol) No - -moz-column-rule-style is supported since Gecko 1.9.1.
column-rule-width CSS 3 (MultiCol) No - -moz-column-rule-width is supported since Gecko 1.9.1.
column-span CSS 3 (MultiCol) No - See {{ bug(616436) }}.
column-width CSS 3 (MultiCol) No - -moz-column-width is supported since Gecko 1.8.
columns CSS 3 (MultiCol) No - -moz-columns is supported since Gecko 9.0.
content CSS 2.1 Yes 1.0 -
counter-increment CSS 2.1 Yes 1.8 -
counter-reset CSS 2.1 Yes 1.8 -
cursor CSS 2.1 Yes 1.0 -
direction CSS 2.1 Yes 1.0 -
display CSS 2.1 Yes 1.0 -
empty-cells CSS 2.1 Yes 1.0 -
float CSS 2.1 Yes 1.0 -
font CSS 2.1 Yes 1.0 -
font-family CSS 2.1 Yes 1.0 -
font-size CSS 2.1 Yes 1.0 -
font-size-adjust CSS 3 (Fonts) Yes 1.0 (1.9) Prior to Gecko 1.9 this was supported only on windows.
font-stretch CSS 3 (Fonts) Yes 9.0  
font-style CSS 2.1 Yes 1.0 -
font-variant CSS 2.1 Yes 1.0 -
font-weight CSS 2.1 Yes 1.0 -
height CSS 2.1 Yes 1.0 -
left CSS 2.1 Yes 1.0 -
letter-spacing CSS 2.1 Yes 1.0 -
line-height CSS 2.1 Yes 1.0 -
list-style CSS 2.1 Yes 1.0 -
list-style-image CSS 2.1 Yes 1.0 -
list-style-position CSS 2.1 Yes 1.0 -
list-style-type CSS 2.1 Yes 1.0 -
margin CSS 2.1 Yes 1.0 -
margin-bottom CSS 2.1 Yes 1.0 -
margin-left CSS 2.1 Yes 1.0 -
margin-right CSS 2.1 Yes 1.0 -
margin-top CSS 2.1 Yes 1.0 -
max-height CSS 2.1 Yes 1.7 -
max-width CSS 2.1 Yes 1.0 -
min-height CSS 2.1 Yes 1.7 -
opacity CSS 3 (Color) Yes 1.7 -
orphans CSS 2.1 No - See {{ Bug(137367) }}.
outline CSS 2.1 Yes 1.8 -
outline-color CSS 2.1 Yes 1.8 -
outline-offset CSS 3 (UI) Yes 1.8 -
outline-style CSS 2.1 Yes 1.8 -
outline-width CSS 2.1 Yes 1.8 -
overflow CSS 2.1 Yes 1.0 -
overflow-x CSS 3 (Box) Yes 1.8 -
overflow-y CSS 3 (Box) Yes 1.8 -
padding CSS 2.1 Yes 1.0 -
padding-bottom CSS 2.1 Yes 1.0 -
padding-left CSS 2.1 Yes 1.0 -
padding-right CSS 2.1 Yes 1.0 -
padding-top CSS 2.1 Yes 1.0 -
page-break-after CSS 2.1 No - See {{ Bug(132035) }}.
page-break-before CSS 2.1 No -
page-break-inside CSS 2.1 No -
position CSS 2.1 Yes 1.0 -
quotes CSS 2.1 Yes 1.0 -
resize CSS 3 (UI) Yes 2.0 -
right CSS 2.1 Yes 1.0 -
table-layout CSS 2.1 Yes 1.0 -
text-align CSS 2.1 Yes 1.0 -
text-align-last CSS 3 (Text) No - -moz-text-align-last is supported since Gecko 12.0.
text-decoration CSS 2.1 Yes 1.0 -
text-decoration-color CSS 3 (Text) No - -moz-text-decoration-color is supported since Gecko 6.0.
text-decoration-line CSS 3 (Text) No - -moz-text-decoration-line is supported since Gecko 6.0.
text-decoration-skip CSS 3 (Text) No - -
text-decoration-style CSS 3 (Text) No - -moz-text-decoration-style is supported since Gecko 6.0.
text-indent CSS 2.1 Yes 1.0 -
text-shadow CSS 3 (Text) Yes 1.9.1 -
text-transform CSS 2.1 Yes 1.0 -
top CSS 2.1 Yes 1.0 -
transform (2D) CSS 3 (2D Transforms) No - -moz-transform is supported since Gecko 1.9.1.
transform-origin (2D) CSS 3 (2D Transforms) No - -moz-transform-origin is supported since Gecko 1.9.1.
transition CSS 3 (Transitions) No - -moz-transition is supported since Gecko 2.0.
transition-delay CSS 3 (Transitions) No - -moz-transition-delay is supported since Gecko 2.0.
transition-duration CSS 3 (Transitions) No - -moz-transition-duration is supported since Gecko 2.0.
transition-property CSS 3 (Transitions) No - -moz-transition-property is supported since Gecko 2.0.
transition-timing-function CSS 3 (Transitions) No - -moz-transition-timing-function is supported since Gecko 2.0.
unicode-bidi CSS 2.1 Yes 1.0 -
vertical-align CSS 2.1 Yes 1.0 -
visibility CSS 2.1 Yes 1.3 -
white-space CSS 2.1 Yes 1.0 -
widows CSS 2.1 No - See {{ Bug(137367) }}.
width CSS 2.1 Yes 1.0 -
word-break CSS 3 (Text) No - See {{ Bug(249159) }}.
word-spacing CSS 2.1 Yes 1.0 -
word-wrap CSS 3 (Text) Yes 1.9.1 -
z-index CSS 2.1 Yes 1.0 -

@-rules

Rule Specification Supported Supported since Notes
@charset CSS 2.1 Yes 1.0 -
@font-face CSS 3 (Fonts) Yes 1.9.1 -
@import CSS 2.1 Yes 1.0 -
@keyframes CSS 3 (Animations) No - @-moz-keyframes is supported since Gecko 5.0
@media CSS 3 (Media Queries) Yes 1.0 -
@namespace CSS 3 (Namespace) Yes 1.0 -
@page CSS 2.1 No - See {{ Bug(115199) }}.

Media queries

Property Specification Supported Supported since Notes
aspect-ratio CSS 3 (MediaQueries) Yes 1.9.1 -
color CSS 3 (MediaQueries) Yes 1.9.1 -
color-index CSS 3 (MediaQueries) Yes 1.9.1 -
device-aspect-ratio CSS 3 (MediaQueries) Yes 1.9.1 -
device-height CSS 3 (MediaQueries) Yes 1.9.1 -
device-width CSS 3 (MediaQueries) Yes 1.9.1 -
grid CSS 3 (MediaQueries) No - -
height CSS 3 (MediaQueries) Yes 1.9.1 -
monochrome CSS 3 (MediaQueries) Yes 1.9.1 -
orientation CSS 3 (MediaQueries) Yes 1.9.1 -
resolution CSS 3 (MediaQueries) Yes 1.9.1 -
scan CSS 3 (MediaQueries) No - -
width CSS 3 (MediaQueries) Yes 1.9.1 -

Values and Units

Value / Unit Specification Supported Supported since Notes
Keywords
inherit CSS 3 (Cascade) Yes 1.0 -
initial CSS 3 (Cascade) No - -moz-initial is supported since Gecko 1.9.
Functions
attr() CSS 3 (Values) No 1.0 Only supported for text in content properties. See {{ Bug(435426) }}.
calc() CSS 3 (Values) No - -moz-calc is supported since Gecko 2.0 See {{ Bug(363249) }}.
counter() CSS 3 (Values) Yes 1.0 -
url() CSS 3 (Values) Yes 1.0 -
Colors
HTML4 color keywords CSS 3 (Color) Yes 1.0 -
SVG color keywords CSS 3 (Color) Yes 1.0 -
System colors CSS 3 (Color) Yes 1.0 -
RGB CSS 3 (Color) Yes 1.0 -
rgba(r,g,b,a) CSS 3 (Color) Yes 1.9 -
hsl(h,s,l) CSS 3 (Color) Yes 1.5 -
hsla(h,s,l,a) CSS 3 (Color) Yes 1.9 -
currentColor CSS 3 (Color) Yes 1.8 -
transparent CSS 3 (Color) Yes 1.9 -
Units
% CSS 3 (Values) Yes 1.0 -
ch CSS 3 (Values) Yes 1.9.1 -
cm CSS 3 (Values) Yes 1.0 -
deg CSS 3 (Values) Yes 1.9.1 -
dpcm CSS 3 (MediaQueries) Yes 1.9.1 -
dpi CSS 3 (MediaQueries) Yes 1.9.1 -
em CSS 3 (Values) Yes 1.0 -
ex CSS 3 (Values) Yes 1.0 -
gd CSS 3 (Values) No - -
grad CSS 3 (Values) Yes 1.9.1 -
Hz CSS 3 (Values) No - -
in CSS 3 (Values) Yes 1.0 -
kHz CSS 3 (Values) No - -
mm CSS 3 (Values) Yes 1.0 -
ms CSS 3 (Values) Yes 2.0 -
pc CSS 3 (Values) Yes 1.0 -
px CSS 3 (Values) Yes 1.0 -
pt CSS 3 (Values) Yes 1.0 -
rad CSS 3 (Values) Yes 1.9.1 -
rem CSS 3 (Values) Yes 1.9.2 -
s CSS 3 (Values) Yes 2.0 -
turn CSS 3 (Values) No - -
vh CSS 3 (Values) No - See {{ Bug(503720) }}.
vm CSS 3 (Values) No -
vw CSS 3 (Values) No -
Images and gradients
image() CSS 3 (Images) No - -
linear-gradient() CSS 3 (Images) No - -moz-linear-gradient() is supported since Gecko 1.9.2.
radial-gradient() CSS 3 (Images) No - -moz-radial-gradient() is supported since Gecko 1.9.2.
repeating-linear-gradient() CSS 3 (Images) No - -moz-repeating-linear-gradient() is supported since Gecko 1.9.2.
repeating-radial-gradient() CSS 3 (Images) No - -moz-repeating-radial-gradient() is supported since Gecko 1.9.2.

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{{ languages({ "de": "de/CSS/CSS_Unterstützung", "ja": "ja/Mozilla_CSS_support_chart"}) }}

Revision Source

<p>This page lists supported CSS <a href="/en/Mozilla_CSS_support_chart#Selectors" title="en/Mozilla_CSS_support_chart#Selectors">selectors</a>, <a href="/en/Mozilla_CSS_support_chart#properties" title="en/Mozilla_CSS_support_chart#properties">properties</a>, <a href="/en/Mozilla_CSS_support_chart#.40-rules" title="en/Mozilla_CSS_support_chart#.40-rules">@-rules</a>, <a href="/en/Mozilla_CSS_support_chart#Media_queries" title="en/Mozilla_CSS_support_chart#Media_queries">Media queries</a> and <a href="/en/Mozilla_CSS_support_chart#values_and_units" title="en/Mozilla_CSS_support_chart#values_and_units">values</a> in alphabetical order.</p>
<p>The <em>"supported since"</em> column indicates the <a href="/en/Gecko" title="en/Gecko">Gecko</a> version number in which support was introduced; versions prior to Gecko 1.0 are listed as 1.0.</p>
<p>Gecko is the rendering engine used in Firefox and other applications; please see <a href="/en/Gecko" title="en/Gecko">Gecko</a> for more information about Firefox and Gecko version numbers.</p>
<p>The "specification" column links to one of the specifications in which the feature was specified:  generally the newest one at the time of writing.  However, in many cases, the feature in also specified in other specifications, both older and newer.  This should probably be fixed to link to all relevant specifications.</p>
<p><a href="/en/CSS/CSS_Reference/Mozilla_Extensions" title="en/CSS_Reference/Mozilla_Extensions">Mozilla CSS extensions</a> (those prefixed with <code>-moz-</code>) are mentioned in the <em>"Notes"</em> column to provide bug numbers and other hints regarding CSS support.</p>
<div class="note">Warning: Various specifications are still <em>Working Drafts</em> and several properties can be deleted, changed or renamed.</div>
<p>If you think you have found a bug in Mozilla's CSS support, please create a <a class="external" href="http://hixie.ch/advocacy/writing-test-cases-for-web-browsers">minimal test case</a> and <a class="external" href="http://bugzilla.mozilla.org">file a bug</a>. Make sure you <a class="link-https" href="https://bugzilla.mozilla.org/query.cgi">search through existing bugs</a> first.</p>
<p>This chart refers to the <a class="external" href="http://www.w3.org/TR/CSS2/" title="http://www.w3.org/TR/CSS2/">CSS 2.1 Specification</a> and <a class="external" href="http://www.w3.org/Style/CSS/current-work">current drafts</a> by the <a class="external" href="http://www.w3.org/Style/CSS/">CSS Workgroup</a>.</p>
<h2 id="Selectors">Selectors</h2>
<table class="fullwidth-table"> <tbody> <tr> <th>Selector</th> <th>Specification</th> <th>Supported</th> <th>Supported since</th> <th>Notes</th> </tr> <tr> <th colspan="5">Basic Selectors</th> </tr> <tr> <td><a href="/en/CSS/Universal_selectors" title="en/CSS/Universal_selectors">Universal Selector</a> <code>*</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#universal-selector" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Type_selectors" title="en/CSS/Type_selectors">Type selector</a> <code>element</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#type-selectors" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/Class_selectors" title="en/CSS/Class_selectors">Class selector</a> <code>.class</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#class-html" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/ID_selectors" title="en/CSS/ID_selectors">ID selector</a> <code>#id</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#id-selectors" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Attribute_selectors" title="en/CSS/Attribute_selectors">Attribute selectors</a> <code>[attribute="value"]</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#attribute-selectors" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <th colspan="5">Combinators</th> </tr> <tr> <td><a href="/en/CSS/Descendant_selectors" title="en/CSS/Descendant_selectors">Descendant selector</a> <code>E F</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#descendant-combinators" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Child_selectors" title="en/CSS/Child_selectors">Child selector</a> <code>E &gt; F</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#child-combinators" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Adjacent_sibling_selectors" title="en/CSS/Adjacent_sibling_selectors">Adjacent sibling selector</a> <code>E + F</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#adjacent-sibling-combinators" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/General_sibling_selectors" title="en/CSS/General_sibling_selectors">General sibling selectors</a> <code>E ~ F</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#general-sibling-combinators" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <th colspan="5">Pseudo-elements</th> </tr> <tr> <td><a href="/en/CSS/:after" title="en/CSS/:after"><code>:after (::after)</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#gen-content" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0 (1.5)</td> <td rowspan="4">Syntax with two colons (::) is supported since Gecko 1.5</td> </tr> <tr> <td><a href="/en/CSS/:before" title="en/CSS/:before"><code>:before (::before)</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#gen-content" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0 (1.5)</td> </tr> <tr> <td><a href="/En/CSS/::first-letter" title="en/CSS/::first-letter"><code>:first-letter (::first-letter)</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#first-letter" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0 (1.5)</td> </tr> <tr> <td><a href="/En/CSS/::first-line" title="en/CSS/::first-line"><code>:first-line (::first-line)</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#first-line" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0 (1.5)</td> </tr> <tr> <td><code>::selection</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#content-selectors" rel="external">CSS 3 (Selectors)</a></td> <td>No</td> <td>-</td> <td><a href="/En/CSS/::selection" title="en/CSS/::-moz-selection"><code>::-moz-selection</code></a> is supported since Gecko 1.5</td> </tr> <tr> <th colspan="5">Dynamic pseudo-classes</th> </tr> <tr> <td><a href="/En/CSS/:link" title="en/CSS/:link"><code>:link</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#dynamic-pseudos" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/:visited" title="en/CSS/:visited"><code>:visited</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#dynamic-pseudos" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/:active" title="en/CSS/:active"><code>:active</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#dynamic-pseudos" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/:hover" title="en/CSS/:hover"><code>:hover</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#dynamic-pseudos" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/:focus" title="en/CSS/:focus"><code>:focus</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#dynamic-pseudos" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <th colspan="5">Structural pseudo-classes</th> </tr> <tr> <td><a href="/En/CSS/:root" title="en/CSS/:root"><code>:root</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#root-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:empty" title="en/CSS/:empty"><code>:empty</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#empty-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>Since Gecko 1.8 an element containing spaces does not longer match <code>:empty</code></td> </tr> <tr> <td><a href="/en/CSS/:first-child" title="en/CSS/:first-child"><code>:first-child</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#first-child-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:last-child" title="en/CSS/:last-child"><code>:last-child</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#last-child-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:only-child" title="en/CSS/:only-child"><code>:only-child</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#only-child-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.8</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:first-of-type" title="en/CSS/:first-of-type"><code>:first-of-type</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#first-of-type-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:last-of-type" title="en/CSS/:last-of-type"><code>:last-of-type</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#last-of-type-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:only-of-type" title="en/CSS/:only-of-type"><code>:only-of-type</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#only-of-type-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:nth-child" title="en/CSS/:nth-child"><code>:nth-child</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#nth-child-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:nth-last-child" title="en/CSS/:nth-last-child"><code>:nth-last-child</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#nth-last-child-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:nth-of-type" title="en/CSS/:nth-of-type"><code>:nth-of-type</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#nth-of-type-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:nth-last-of-type" title="en/CSS/:nth-last-of-type"><code>:nth-last-of-type</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#nth-last-of-type-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <th colspan="5">UI pseudo-classes</th> </tr> <tr> <td><a href="/En/CSS/:enabled" title="en/CSS/:enabled"><code>:enabled</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#enableddisabled" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.1</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/:disabled" title="en/CSS/:disabled"><code>:disabled</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#enableddisabled" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.1</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/:checked" title="en/CSS/:checked"><code>:check</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#checked" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.1</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/:indeterminate" title="en/CSS/:indeterminate"><code>:indeterminate</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#indeterminate" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.9.2</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:default" title="en/CSS/:default"><code>:default</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-default" rel="external">CSS 3 (UI)</a></td> <td>Yes</td> <td>1.9</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:valid" title="en/CSS/:valid"><code>:valid</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-valid" rel="external">CSS 3 (UI)</a></td> <td>Yes</td> <td>2.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:invalid" title="en/CSS/:invalid"><code>:invalid</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-invalid" rel="external">CSS 3 (UI)</a></td> <td>Yes</td> <td>2.0</td> <td>-</td> </tr> <tr> <td><code>:in-range</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-in-range" rel="external">CSS 3 (UI)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>:out-of-range</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-out-of-range" rel="external">CSS 3 (UI)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:required" title="en/CSS/:required"><code>:required</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-required" rel="external">CSS 3 (UI)</a></td> <td>Yes</td> <td>2.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/:optional" title="en/CSS/:optional"><code>:optional</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-optional" rel="external">CSS 3 (UI)</a></td> <td>Yes</td> <td>2.0</td> <td>-</td> </tr> <tr> <td><code>:read-only</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-read-only" rel="external">CSS 3 (UI)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>:read-write</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-read-write" rel="external">CSS 3 (UI)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>::value</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-value" rel="external">CSS 3 (UI)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>::choices</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-choices" rel="external">CSS 3 (UI)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>::repeat-item</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-repeat-item" rel="external">CSS 3 (UI)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>::repeat-index</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#pseudo-repeat-index" rel="external">CSS 3 (UI)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <th colspan="5">Other pseudo-classes</th> </tr> <tr> <td><a href="/en/CSS/:lang" title="en/CSS/:lang"><code>:lang</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#lang-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.2</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/:not" title="en/CSS/:not"><code>:not</code></a></td> <td><a class="external" href="" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/:target" title="en/CSS/:target"><code>:target</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-selectors/#target-pseudo" rel="external">CSS 3 (Selectors)</a></td> <td>Yes</td> <td>1.3</td> <td>-</td> </tr> </tbody>
</table>
<h2 id="Properties">Properties</h2>
<table class="fullwidth-table"> <tbody> <tr> <th>Property</th> <th>Specification</th> <th>Supported</th> <th>Supported since</th> <th>Notes</th> </tr> <tr> <td><code>animation</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-animations/#animation" rel="external">CSS 3 (Animations)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/animation" title="en/CSS/animation"><code>-moz-animation</code></a> is supported since Gecko 5.0.</td> </tr> <tr> <td><code>animation-delay</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-animations/#animation-trigger" rel="external">CSS 3 (Animations)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/animation-delay" title="en/CSS/animation-delay"><code>-moz-animation-delay</code></a> is supported since Gecko 5.0.</td> </tr> <tr> <td><code>animation-direction</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-animations/#animation-direction" rel="external">CSS 3 (Animations)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/animation-direction" title="en/CSS/animation-direction"><code>-moz-animation-direction</code></a> is supported since Gecko 5.0.</td> </tr> <tr> <td><code>animation-duration</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-animations/#animation-duration" rel="external">CSS 3 (Animations)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/animation-duration" title="en/CSS/animation-duration"><code>-moz-animation-duration</code></a> is supported since Gecko 5.0.</td> </tr> <tr> <td><code>animation-fill-mode</code></td> <td><a class="external" href="http://dev.w3.org/csswg/css3-animations/#the-animation-fill-mode-property-" rel="external">CSS 3 (Animations)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/animation-fill-mode" title="en/CSS/animation-fill-mode"><code>-moz-animation-fill-mode</code></a> is supported since Gecko 5.0.</td> </tr> <tr> <td><code>animation-iteration-count</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-animations/#animation-iteration-count" rel="external">CSS 3 (Animations)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/animation-iteration-count" title="en/CSS/animation-iteration-count"><code>-moz-animation-iteration-count</code></a> is supported since Gecko 5.0.</td> </tr> <tr> <td><code>animation-name</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-animations/#animation-name" rel="external">CSS 3 (Animations)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/animation-name" title="en/CSS/animation-name"><code>-moz-animation-name</code></a> is supported since Gecko 5.0.</td> </tr> <tr> <td><code>animation-play-state</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-animations/#animation-play-state" rel="external">CSS 3 (Animations)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/animation-play-state" title="en/CSS/animation-play-state"><code>-moz-animation-play-state</code></a> is supported since Gecko 5.0.</td> </tr> <tr> <td><code>animation-timing-function</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-animations/#animation-timing-function" rel="external">CSS 3 (Animations)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/animation-timing-function" title="en/CSS/animation-timing-function"><code>-moz-animation-timing-function</code></a> is supported since Gecko 5.0.</td> </tr> <tr> <td><code>appearance</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#appearance0" rel="external">CSS 3 (UI)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/-moz-appearance" title="en/CSS/-moz-appearance"><code>-moz-appearance</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><a href="/en/CSS/background" title="en/CSS/background"><code>background</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-background" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0 (1.9.2)</td> <td rowspan="2">Multiple backgrounds are supported since Gecko 1.9.2.</td> </tr> <tr> <td><a href="/en/CSS/background-attachment" title="en/CSS/background-attachment"><code>background-attachment</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#background-attachment" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0 (1.9.2)</td> </tr> <tr> <td><a href="/en/CSS/background-clip" title="en/CSS/background-clip"><code>background-clip</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-background-clip" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>2.0</td> <td><code>-moz-background-clip</code> was supported since Gecko 1.2 till 1.9.2.</td> </tr> <tr> <td><a href="/en/CSS/background-color" title="en/CSS/background-color"><code>background-color</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-background-color" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/background-image" title="en/CSS/background-image"><code>background-image</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-background-image" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0 (1.9.2)</td> <td>Multiple backgrounds are supported since Gecko 1.9.2.</td> </tr> <tr> <td><a href="/en/CSS/background-origin" title="en/CSS/background-origin"><code>background-origin</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-background-origin" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>2.0</td> <td><code>-moz-background-origin</code> was supported since Gecko 1.2 till 1.9.2.</td> </tr> <tr> <td><a href="/en/CSS/background-position" title="en/CSS/background-position"><code>background-position</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-background-position" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0 (1.9.2)</td> <td rowspan="2">Multiple backgrounds are supported since Gecko 1.9.2.</td> </tr> <tr> <td><a href="/en/CSS/background-repeat" title="en/CSS/background-repeat"><code>background-repeat</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-background-repeat" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0 (1.9.2)</td> </tr> <tr> <td><a href="/en/CSS/background-size" title="en/CSS/background-size"><code>background-size</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-background-size" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>2.0</td> <td><code>-moz-background-size</code> was supported in Gecko 1.9.2.</td> </tr> <tr> <td><a href="/en/CSS/border" title="en/CSS/border"><code>border</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-shorthands" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-bottom" title="en/CSS/border-bottom"><code>border-bottom</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-shorthands" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-bottom-color" title="en/CSS/border-bottom-color"><code>border-bottom-color</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-color" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-bottom-left-radius" title="en/CSS/border-bottom-left-radius"><code>border-bottom-left-radius</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-radius" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>2.0</td> <td><a href="/en/CSS/border-bottom-left-radius" title="en/CSS/-moz-border-radius-bottomleft"><code>-moz-border-radius-bottomleft</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><a href="/en/CSS/border-bottom-right-radius" title="en/CSS/border-bottom-right-radius"><code>border-bottom-right-radius</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-radius" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>2.0</td> <td><a href="/en/CSS/border-bottom-right-radius" title="en/CSS/-moz-border-radius-bottomright"><code>-moz-border-radius-bottomright</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><a href="/en/CSS/border-bottom-style" title="en/CSS/border-bottom-style"><code>border-bottom-style</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-style" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-bottom-width" title="en/CSS/Border-bottom-width"><code>border-bottom-width</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-width" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-collapse" title="en/CSS/border-collapse"><code>border-collapse</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/tables.html#propdef-border-collapse" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-color" title="en/CSS/border-color"><code>border-color</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-color" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><code>border-image</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-image" rel="external">CSS 3 (Background)</a></td> <td>No</td> <td>-</td> <td><a href="/En/CSS/border-image" title="en/CSS/-moz-border-image"><code>-moz-border-image</code></a> is supported since Gecko 1.9.1, but differs from current specification. See {{ Bug(497995) }}.</td> </tr> <tr> <td><code>border-image-outset</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-image-outset" rel="external">CSS 3 (Background)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>border-image-repeat</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-image-repeat" rel="external">CSS 3 (Background)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>border-image-slice</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-image-slice" rel="external">CSS 3 (Background)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>border-image-source</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-image-source" rel="external">CSS 3 (Background)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>border-image-width</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-image-width" rel="external">CSS 3 (Background)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-left" title="en/CSS/border-left"><code>border-left</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-shorthands" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-left-color" title="en/CSS/border-left-color"><code>border-left-color</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-color" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-left-style" title="en/CSS/border-left-style"><code>border-left-style</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-style" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-left-width" title="en/CSS/Border-left-width"><code>border-left-width</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-width" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-radius" title="en/CSS/border-radius"><code>border-radius</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-radius" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>2.0</td> <td><a href="/en/CSS/border-radius" title="en/CSS/-moz-border-radius"><code>-moz-border-radius</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><a href="/en/CSS/border-right" title="en/CSS/border-right"><code>border-right</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-shorthands" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-right-color" title="en/CSS/border-right-color"><code>border-right-color</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-color" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-right-style" title="en/CSS/border-right-style"><code>border-right-style</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-style" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-right-width" title="en/CSS/Border-right-width"><code>border-right-width</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-width" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-spacing" title="en/CSS/border-spacing"><code>border-spacing</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/tables.html#propdef-border-spacing" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-style" title="en/CSS/border-style"><code>border-style</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-style" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-top" title="en/CSS/border-top"><code>border-top</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-shorthands" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-top-color" title="en/CSS/border-top-color"><code>border-top-color</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-color" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-top-left-radius" title="en/CSS/border-top-left-radius"><code>border-top-left-radius</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-radius" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>2.0</td> <td><a href="/en/CSS/border-top-left-radius" title="en/CSS/-moz-border-radius-topleft"><code>-moz-border-radius-topleft</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><a href="/en/CSS/border-top-right-radius" title="en/CSS/border-top-right-radius"><code>border-top-right-radius</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-radius" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>2.0</td> <td><a href="/en/CSS/border-top-right-radius" title="en/CSS/-moz-border-radius-topright"><code>-moz-border-radius-topright</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><a href="/en/CSS/border-top-style" title="en/CSS/border-top-style"><code>border-top-style</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-style" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-top-width" title="en/CSS/Border-top-width"><code>border-top-width</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-width" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/border-width" title="en/CSS/border-width"><code>border-width</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-border-width" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/bottom" title="en/CSS/Bottom"><code>bottom</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-bottom" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><code>box-align</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-flexbox/#propdef-box-align" rel="external">CSS 3 (Flexbox)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/box-align" title="en/CSS/-moz-box-align"><code>-moz-box-align</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><code>box-decoration-break</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-box-decoration-break" rel="external">CSS 3 (Background)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>box-direction</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-flexbox/#propdef-box-direction" rel="external">CSS 3 (Flexbox)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/box-direction" title="en/CSS/-moz-box-direction"><code>-moz-box-direction</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><code>box-flex</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-flexbox/#propdef-box-flex" rel="external">CSS 3 (Flexbox)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/box-flex" title="en/CSS/-moz-box-flex"><code>-moz-box-flex</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><code>box-flex-group</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-flexbox/#propdef-box-flex-group" rel="external">CSS 3 (Flexbox)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/-moz-box-flex-group" title="en/CSS/-moz-box-flex-group"><code>-moz-box-flex-group</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><code>box-lines</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-flexbox/#propdef-box-lines" rel="external">CSS 3 (Flexbox)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>box-ordinal-group</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-flexbox/#propdef-box-ordinal-group" rel="external">CSS 3 (Flexbox)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/-moz-box-ordinal-group" title="en/CSS/-moz-box-ordinal-group"><code>-moz-box-ordinal-group</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><code>box-orient</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-flexbox/#propdef-box-orient" rel="external">CSS 3 (Flexbox)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/box-orient" title="en/CSS/-moz-box-orient"><code>-moz-box-orient</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><code>box-pack</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-flexbox/#propdef-box-pack" rel="external">CSS 3 (Flexbox)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/box-pack" title="en/CSS/-moz-box-pack"><code>-moz-box-pack</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><a href="/En/CSS/Box-shadow" title="En/CSS/Box-shadow"><code>box-shadow</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-background/#the-box-shadow" rel="external">CSS 3 (Background)</a></td> <td>Yes</td> <td>2.0</td> <td><a href="/En/CSS/Box-shadow" title="en/CSS/-moz-box-shadow"><code>-moz-box-shadow</code></a> is supported since Gecko 1.9.1.</td> </tr> <tr> <td><code>box-sizing</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#box-sizing0" rel="external">CSS 3 (UI)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/-moz-box-sizing" title="en/CSS/-moz-box-sizing"><code>-moz-box-sizing</code></a> is supported since Gecko 1.0.</td> </tr> <tr> <td><a href="/en/CSS/caption-side" title="en/CSS/caption-side"><code>caption-side</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/tables.html#propdef-caption-side" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.4</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/clear" title="en/CSS/clear"><code>clear</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-clear" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/clip" title="en/CSS/clip"><code>clip</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/color" title="en/CSS/color"><code>color</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-color/#color0" rel="external">CSS 3 (Color)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><code>column-count</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-multicol/#column-count" rel="external">CSS 3 (MultiCol)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/column-count" title="en/CSS/-moz-column-count"><code>-moz-column-count</code></a> is supported since Gecko 1.8.</td> </tr> <tr> <td><code>column-fill</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-multicol/#column-fill" rel="external">CSS 3 (MultiCol)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/column-fill" title="en/CSS/column-fill"><code>-moz-column-fill</code></a> is supported since Gecko 13.0.</td> </tr> <tr> <td><code>column-gap</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-multicol/#column-gap" rel="external">CSS 3 (MultiCol)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/column-gap" title="en/CSS/-moz-column-gap"><code>-moz-column-gap</code></a> is supported since Gecko 1.8.</td> </tr> <tr> <td><code>column-rule</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-multicol/#column-rule" rel="external">CSS 3 (MultiCol)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/column-rule" title="en/CSS/-moz-column-rule"><code>-moz-column-rule</code></a> is supported since Gecko 1.9.1.</td> </tr> <tr> <td><code>column-rule-color</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-multicol/#column-rule-color" rel="external">CSS 3 (MultiCol)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/column-rule-color" title="en/CSS/-moz-column-rule-color"><code>-moz-column-rule-color</code></a> is supported since Gecko 1.9.1.</td> </tr> <tr> <td><code>column-rule-style</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-multicol/#column-rule-style" rel="external">CSS 3 (MutliCol)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/column-rule-style" title="en/CSS/-moz-column-rule-style"><code>-moz-column-rule-style</code></a> is supported since Gecko 1.9.1.</td> </tr> <tr> <td><code>column-rule-width</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-multicol/#column-rule-width" rel="external">CSS 3 (MultiCol)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/column-rule-width" title="en/CSS/-moz-column-rule-width"><code>-moz-column-rule-width</code></a> is supported since Gecko 1.9.1.</td> </tr> <tr> <td><code>column-span</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-multicol/#column-span" rel="external">CSS 3 (MultiCol)</a></td> <td>No</td> <td>-</td> <td>See {{ bug(616436) }}.</td> </tr> <tr> <td><code>column-width</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-multicol/#column-width" rel="external">CSS 3 (MultiCol)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/column-width" title="en/CSS/-moz-column-width"><code>-moz-column-width</code></a> is supported since Gecko 1.8.</td> </tr> <tr> <td><code>columns</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-multicol/#columns" rel="external">CSS 3 (MultiCol)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/columns" title="en/CSS/columns"><code>-moz-columns</code></a> is supported since Gecko 9.0.</td> </tr> <tr> <td><a href="/en/CSS/content" title="en/CSS/content"><code>content</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/generate.html#propdef-content" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/counter-increment" title="en/CSS/counter-increment"><code>counter-increment</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/generate.html#propdef-counter-increment" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.8</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/counter-reset" title="en/CSS/counter-reset"><code>counter-reset</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/generate.html#propdef-counter-reset" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.8</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/cursor" title="en/CSS/cursor"><code>cursor</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/ui.html#propdef-cursor" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/direction" title="en/CSS/direction"><code>direction</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-direction" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/display" title="en/CSS/display"><code>display</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-display" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/empty-cells" title="en/CSS/empty-cells"><code>empty-cells</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/tables.html#propdef-empty-cells" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/float" title="en/CSS/float"><code>float</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-float" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/font" title="en/CSS/font"><code>font</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/fonts.html#propdef-font" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/font-family" title="en/CSS/font-family"><code>font-family</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/fonts.html#propdef-font-family" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/font-size" title="en/CSS/font-size"><code>font-size</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/fonts.html#propdef-font-size" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/font-size-adjust" title="en/CSS/font-size-adjust"><code>font-size-adjust</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-fonts/#font-size-adjust" rel="external">CSS 3 (Fonts)</a></td> <td>Yes</td> <td>1.0 (1.9)</td> <td>Prior to Gecko 1.9 this was supported only on windows.</td> </tr> <tr> <td><a href="/en/CSS/font-stretch" title="font-stretch"><code>font-stretch</code></a></td> <td><a class="external" href="http://dev.w3.org/csswg/css3-fonts/#descdef-font-stretch" rel="external">CSS 3 (Fonts)</a></td> <td>Yes</td> <td>9.0</td> <td> </td> </tr> <tr> <td><a href="/en/CSS/font-style" title="en/CSS/font-style"><code>font-style</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/fonts.html#propdef-font-style" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/font-variant" title="en/CSS/font-variant"><code>font-variant</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/fonts.html#propdef-font-variant" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/font-weight" title="en/CSS/font-weight"><code>font-weight</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/fonts.html#propdef-font-weight" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/height" title="en/CSS/height"><code>height</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visudet.html#propdef-height" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/left" title="en/CSS/Left"><code>left</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-left" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/letter-spacing" title="en/CSS/letter-spacing"><code>letter-spacing</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/text.html#propdef-letter-spacing" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/line-height" title="en/CSS/line-height"><code>line-height</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visudet.html#propdef-line-height" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/list-style" title="en/CSS/list-style"><code>list-style</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/generate.html#propdef-list-style" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/list-style-image" title="en/CSS/list-style-image"><code>list-style-image</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/generate.html#propdef-list-style-image" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/list-style-position" title="en/CSS/list-style-position"><code>list-style-position</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/generate.html#propdef-list-style-position" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/list-style-type" title="en/CSS/list-style-type"><code>list-style-type</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/generate.html#propdef-list-style-type" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/margin" title="en/CSS/margin"><code>margin</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/box.html#propdef-margin" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/margin-bottom" title="en/CSS/margin-bottom"><code>margin-bottom</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/box.html#propdef-margin-bottom" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/margin-left" title="en/CSS/margin-left"><code>margin-left</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/box.html#propdef-margin-left" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/margin-right" title="en/CSS/margin-right"><code>margin-right</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/box.html#propdef-margin-right" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/margin-top" title="en/CSS/margin-top"><code>margin-top</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/box.html#propdef-margin-top" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/max-height" title="en/CSS/max-height"><code>max-height</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visudet.html#propdef-max-height" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.7</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/max-width" title="en/CSS/max-width"><code>max-width</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visudet.html#propdef-max-width" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/min-height" title="en/CSS/min-height"><code>min-height</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visudet.html#propdef-min-height" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.7</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/opacity" title="en/CSS/opacity"><code>opacity</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-color/#opacity" rel="external">CSS 3 (Color)</a></td> <td>Yes</td> <td>1.7</td> <td>-</td> </tr> <tr> <td><code>orphans</code></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/page.html#propdef-orphans" rel="external">CSS 2.1</a></td> <td>No</td> <td>-</td> <td>See {{ Bug(137367) }}.</td> </tr> <tr> <td><a href="/en/CSS/outline" title="en/CSS/outline"><code>outline</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/ui.html#propdef-outline" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.8</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/outline-color" title="en/CSS/outline-color"><code>outline-color</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/ui.html#propdef-outline-color" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.8</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/outline-offset" title="en/CSS/outline-offset"><code>outline-offset</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#outline-offset0" rel="external">CSS 3 (UI)</a></td> <td>Yes</td> <td>1.8</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/outline-style" title="en/CSS/outline-style"><code>outline-style</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/ui.html#propdef-outline-style" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.8</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/outline-width" title="en/CSS/outline-width"><code>outline-width</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/ui.html#propdef-outline-width" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.8</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/overflow" title="en/CSS/overflow"><code>overflow</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-overflow" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/overflow-x" title="en/CSS/overflow-x"><code>overflow-x</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-box/#overflow-x" rel="external">CSS 3 (Box)</a></td> <td>Yes</td> <td>1.8</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/Overflow-y" title="en/CSS/overflow-y"><code>overflow-y</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-box/#overflow-y" rel="external">CSS 3 (Box)</a></td> <td>Yes</td> <td>1.8</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/padding" title="en/CSS/padding"><code>padding</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/box.html#propdef-padding" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/padding-bottom" title="en/CSS/padding-bottom"><code>padding-bottom</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/box.html#propdef-padding-bottom" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/padding-left" title="en/CSS/padding-left"><code>padding-left</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/box.html#propdef-padding-left" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/padding-right" title="en/CSS/padding-right"><code>padding-right</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/box.html#propdef-padding-right" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/padding-top" title="en/CSS/padding-top"><code>padding-top</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/box.html#propdef-padding-top" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/page-break-after" title="en/CSS/page-break-after"><code>page-break-after</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/page.html#propdef-page-break-after" rel="external">CSS 2.1</a></td> <td>No</td> <td>-</td> <td rowspan="3">See {{ Bug(132035) }}.</td> </tr> <tr> <td><a href="/en/CSS/page-break-before" title="en/CSS/page-break-before"><code>page-break-before</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/page.html#propdef-page-break-before" rel="external">CSS 2.1</a></td> <td>No</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/page-break-inside" title="en/CSS/page-break-inside"><code>page-break-inside</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/page.html#propdef-page-break-inside" rel="external">CSS 2.1</a></td> <td>No</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/position" title="en/CSS/position"><code>position</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-position" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/quotes" title="en/CSS/quotes"><code>quotes</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/generate.html#propdef-quotes" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/resize" title="en/CSS/resize"><code>resize</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-ui/#resize0" rel="external">CSS 3 (UI)</a></td> <td>Yes</td> <td>2.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/right" title="en/CSS/Right"><code>right</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-right" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/table-layout" title="en/CSS/table-layout"><code>table-layout</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/tables.html#propdef-table-layout" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/text-align" title="en/CSS/text-align"><code>text-align</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/text.html#propdef-text-align" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/text-align-last" title="en/CSS/text-align-last"><code>text-align-last</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-text/#text-align-last" rel="external">CSS 3 (Text)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/text-align-last" title="en/CSS/text-align-last"><code>-moz-text-align-last</code></a> is supported since Gecko 12.0.</td> </tr> <tr> <td><a href="/en/CSS/text-decoration" title="en/CSS/text-decoration"><code>text-decoration</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/text.html#propdef-text-decoration" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><code>text-decoration-color</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-text/#text-decoration-color" rel="external">CSS 3 (Text)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/text-decoration-color" title="en/CSS/text-decoration-color"><code>-moz-text-decoration-color</code></a> is supported since Gecko 6.0.</td> </tr> <tr> <td><code>text-decoration-line</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-text/#text-decoration-line" rel="external">CSS 3 (Text)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/text-decoration-line" title="en/CSS/text-decoration-line"><code>-moz-text-decoration-line</code></a> is supported since Gecko 6.0.</td> </tr> <tr> <td><code>text-decoration-skip</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-text/#text-decoration-skip" rel="external">CSS 3 (Text)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>text-decoration-style</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-text/#text-decoration-style" rel="external">CSS 3 (Text)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/text-decoration-style" title="en/CSS/text-decoration-style"><code>-moz-text-decoration-style</code></a> is supported since Gecko 6.0.</td> </tr> <tr> <td><a href="/en/CSS/text-indent" title="en/CSS/text-indent"><code>text-indent</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/text.html#propdef-text-indent" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/text-shadow" title="en/CSS/text-shadow"><code>text-shadow</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-text/#text-shadow" rel="external">CSS 3 (Text)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/text-transform" title="en/CSS/text-transform"><code>text-transform</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/text.html#propdef-text-transform" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/top" title="en/CSS/Top"><code>top</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-top" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><code>transform</code> (2D)</td> <td><a class="external" href="http://www.w3.org/TR/css3-2d-transforms/#transform-property" rel="external">CSS 3 (2D Transforms)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/transform" title="en/CSS/-moz-transform"><code>-moz-transform</code></a> is supported since Gecko 1.9.1.</td> </tr> <tr> <td><code>transform-origin</code> (2D)</td> <td><a class="external" href="http://www.w3.org/TR/css3-2d-transforms/#transform-origin-property" rel="external">CSS 3 (2D Transforms)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/transform-origin" title="en/CSS/-moz-transform-origin"><code>-moz-transform-origin</code></a> is supported since Gecko 1.9.1.</td> </tr> <tr> <td><code>transition</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-transitions/#transition" rel="external">CSS 3 (Transitions)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/transition" title="en/CSS/-moz-transition"><code>-moz-transition</code></a> is supported since Gecko 2.0.</td> </tr> <tr> <td><code>transition-delay</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-transitions/#transition-delay" rel="external">CSS 3 (Transitions)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/transition-delay" title="en/CSS/-moz-transition-delay"><code>-moz-transition-delay</code></a> is supported since Gecko 2.0.</td> </tr> <tr> <td><code>transition-duration</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-transitions/#transition-duration" rel="external">CSS 3 (Transitions)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/transition-duration" title="en/CSS/-moz-transition-duration"><code>-moz-transition-duration</code></a> is supported since Gecko 2.0.</td> </tr> <tr> <td><code>transition-property</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-transitions/#transition-property" rel="external">CSS 3 (Transitions)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/transition-property" title="en/CSS/-moz-transition-property"><code>-moz-transition-property</code></a> is supported since Gecko 2.0.</td> </tr> <tr> <td><code>transition-timing-function</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-transitions/#transition-timing-function" rel="external">CSS 3 (Transitions)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/transition-timing-function" title="en/CSS/-moz-transition-timing-function"><code>-moz-transition-timing-function</code></a> is supported since Gecko 2.0.</td> </tr> <tr> <td><a href="/en/CSS/unicode-bidi" title="en/CSS/unicode-bidi"><code>unicode-bidi</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-unicode-bidi" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/vertical-align" title="en/CSS/vertical-align"><code>vertical-align</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visudet.html#propdef-vertical-align" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/visibility" title="en/CSS/visibility"><code>visibility</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.3</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/white-space" title="en/CSS/white-space"><code>white-space</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/text.html#propdef-white-space" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/widows" title="en/CSS/widows"><code>widows</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/page.html#propdef-widows" rel="external">CSS 2.1</a></td> <td>No</td> <td>-</td> <td>See {{ Bug(137367) }}.</td> </tr> <tr> <td><a href="/en/CSS/width" title="en/CSS/width"><code>width</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visudet.html#propdef-width" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><code>word-break</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-text/#word-break" rel="external">CSS 3 (Text)</a></td> <td>No</td> <td>-</td> <td>See {{ Bug(249159) }}.</td> </tr> <tr> <td><a href="/en/CSS/word-spacing" title="en/CSS/word-spacing"><code>word-spacing</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/text.html#propdef-word-spacing" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/Word-wrap" title="en/CSS/word-wrap"><code>word-wrap</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-text/#word-wrap" rel="external">CSS 3 (Text)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/z-index" title="en/CSS/z-index"><code>z-index</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-z-index" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> </tbody>
</table>
<h2 id="@-rules">@-rules</h2>
<table class="fullwidth-table"> <tbody> <tr> <th>Rule</th> <th>Specification</th> <th>Supported</th> <th>Supported since</th> <th>Notes</th> </tr> <tr> <td><a href="/en/CSS/@charset" title="en/CSS/@charset"><code>@charset</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/syndata.html#q23" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/@font-face" title="en/CSS/@font-face"><code>@font-face</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-fonts/#the-font-face-rule" rel="external">CSS 3 (Fonts)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/@import" title="en/CSS/@import"><code>@import</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/cascade.html#at-import" rel="external">CSS 2.1</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/@keyframes" title="en/CSS/@keyframes"><code>@keyframes</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-animations/#keyframes-" rel="external">CSS 3 (Animations)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/@keyframes" title="en/CSS/@keyframes">@-moz-keyframes</a> is supported since Gecko 5.0</td> </tr> <tr> <td><a href="/en/CSS/@media" title="en/CSS/@media"><code>@media</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#background" rel="external">CSS 3 (Media Queries)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/@namespace" title="en/CSS/@namespace"><code>@namespace</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-namespace/#q2" rel="external">CSS 3 (Namespace)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/@page" title="en/CSS/@page"><code>@page</code></a></td> <td><a class="external" href="http://www.w3.org/TR/CSS21/page.html#page-box" rel="external">CSS 2.1</a></td> <td>No</td> <td>-</td> <td>See {{ Bug(115199) }}.</td> </tr> </tbody>
</table>
<h2 id="Media_queries">Media queries</h2>
<table class="fullwidth-table"> <tbody> <tr> <th>Property</th> <th>Specification</th> <th>Supported</th> <th>Supported since</th> <th>Notes</th> </tr> <tr> <td><a href="/en/CSS/Media_queries#aspect-ratio" title="en/CSS/Media Queries#aspect-ratio"><code>aspect-ratio</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#aspect-ratio" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#color" title="en/CSS/Media Queries#color"><code>color</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#color" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#color-index" title="en/CSS/Media Queries#color-index"><code>color-index</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#color-index" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#device-aspect-ratio" title="en/CSS/Media Queries#device-aspect-ratio"><code>device-aspect-ratio</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#device-aspect-ratio" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#device-height" title="en/CSS/Media Queries#device-height"><code>device-height</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#device-height" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#device-width" title="en/CSS/Media Queries#device-width"><code>device-width</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#device-width" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#grid" title="en/CSS/Media Queries#grid"><code>grid</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#grid" rel="external">CSS 3 (MediaQueries)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#height" title="en/CSS/Media Queries#height"><code>height</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#height" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#monochrome" title="en/CSS/Media Queries#monochrome"><code>monochrome</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#monochrome" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#orientation" title="en/CSS/Media Queries#orientation"><code>orientation</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#orientation" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#resolution" title="en/CSS/Media Queries#resolution"><code>resolution</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#resolution" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#scan" title="en/CSS/Media Queries#scan"><code>scan</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#scan" rel="external">CSS 3 (MediaQueries)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/Media_queries#width" title="en/CSS/Media Queries#width"><code>width</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#width" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> </tbody>
</table>
<h2 id="Values_and_Units">Values and Units</h2>
<table class="fullwidth-table"> <tbody> <tr> <th>Value / Unit</th> <th>Specification</th> <th>Supported</th> <th>Supported since</th> <th>Notes</th> </tr> <tr> <th colspan="5">Keywords</th> </tr> <tr> <td><a href="/en/CSS/inherit" title="en/CSS/inherit"><code>inherit</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-cascade/#inheritance" rel="external">CSS 3 (Cascade)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><code>initial</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-cascade/#initial0" rel="external">CSS 3 (Cascade)</a></td> <td>No</td> <td>-</td> <td><a class="new " href="/en/CSS/-moz-initial" rel="internal"><code>-moz-initial</code></a> is supported since Gecko 1.9.</td> </tr> <tr> <th colspan="5">Functions</th> </tr> <tr> <td><a href="/en/CSS/attr" title="en/CSS/attr"><code>attr()</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#attribute" rel="external">CSS 3 (Values)</a></td> <td>No</td> <td>1.0</td> <td>Only supported for text in <code>content</code> properties. See {{ Bug(435426) }}.</td> </tr> <tr> <td><a href="/en/CSS/calc" title="en/CSS/calc"><code>calc()</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#calc" rel="external">CSS 3 (Values)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/calc" title="en/CSS/-moz-calc"><code>-moz-calc</code></a> is supported since Gecko 2.0 See {{ Bug(363249) }}.</td> </tr> <tr> <td><a href="/en/CSS_Counters" title="en/CSS/counter"><code>counter()</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#the-counter" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/uri" title="en/CSS/uri"><code>url()</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#uris" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <th colspan="5">Colors</th> </tr> <tr> <td><a href="/en/CSS/color_value#HTML.2fSVG.2fX11.c2.a0_Color_Keywords" title="en/CSS/color_value#HTML.2fSVG.2fX11.c2.a0_Color_Keywords">HTML4 color keywords</a></td> <td><a class="external" href="http://www.w3.org/TR/css3-color/#html4" rel="external">CSS 3 (Color)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/color_value#HTML.2fSVG.2fX11.c2.a0_Color_Keywords" title="en/CSS/color_value#HTML.2fSVG.2fX11.c2.a0_Color_Keywords">SVG color keywords</a></td> <td><a class="external" href="http://www.w3.org/TR/css3-color/#svg-color" rel="external">CSS 3 (Color)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/color_value#System_Colors" title="en/CSS/color_value#System_Colors">System colors</a></td> <td><a class="external" href="http://www.w3.org/TR/css3-color/#css-system" rel="external">CSS 3 (Color)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/color_value#RGB_(red-green-blue)" title="en/CSS/color_value#RGB_(red-green-blue)">RGB</a></td> <td><a class="external" href="http://www.w3.org/TR/css3-color/#rgb-color" rel="external">CSS 3 (Color)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/color_value#RGBa_(red-green-blue-alpha)_rgba(R.2cG.2cB.2ca)" title="en/CSS/color_value#RGBa_(red-green-blue-alpha)_rgba(R.2cG.2cB.2ca)"><code>rgba(r,g,b,a)</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-color/#rgba-color" rel="external">CSS 3 (Color)</a></td> <td>Yes</td> <td>1.9</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/color_value#HSL_(hue-saturation-lightness)_hsl(H.2cS.2cL)" title="en/CSS/color_value#HSL_(hue-saturation-lightness)_hsl(H.2cS.2cL)"><code>hsl(h,s,l)</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-color/#hsl-color" rel="external">CSS 3 (Color)</a></td> <td>Yes</td> <td>1.5</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/color_value#HSLa_(hue-saturation-lightness-alpha)_hsla(H.2cS.2cL.2ca)" title="en/CSS/color_value#HSLa_(hue-saturation-lightness-alpha)_hsla(H.2cS.2cL.2ca)"><code>hsla(h,s,l,a)</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-color/#hsla-color" rel="external">CSS 3 (Color)</a></td> <td>Yes</td> <td>1.9</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/color_value#currentColor_Keyword" title="en/CSS/color_value#currentColor_Keyword"><code>currentColor</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-color/#currentcolor" rel="external">CSS 3 (Color)</a></td> <td>Yes</td> <td>1.8</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/color_value#transparent_Keyword" title="en/CSS/color_value#transparent_Keyword"><code>transparent</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-color/#transparent" rel="external">CSS 3 (Color)</a></td> <td>Yes</td> <td>1.9</td> <td>-</td> </tr> <tr> <th colspan="5">Units</th> </tr> <tr> <td><a href="/en/CSS/percentage" title="en/CSS/percentage"><code>%</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#percentages" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/length#Relative_length_units" title="en/CSS/length#Relative_length_units"><code>ch</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#relative0" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/length#Absolute_length_units" title="en/CSS/length#Absolute_length_units"><code>cm</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#absolute0" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/angle" title="en/CSS/angle"><code>deg</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#angles" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/Resolution" title="en/CSS/resolution"><code>dpcm</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#units" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/En/CSS/Resolution" title="en/CSS/resolution"><code>dpi</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-mediaqueries/#units" rel="external">CSS 3 (MediaQueries)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/length#Relative_length_units" title="en/CSS/length#Relative_length_units"><code>em</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#em" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/length#Relative_length_units" title="en/CSS/length#Relative_length_units"><code>ex</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#ex" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><code>gd</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#gd" rel="external">CSS 3 (Values)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/angle" title="en/CSS/angle"><code>grad</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#angles" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/frequency" title="en/CSS/frequency"><code>Hz</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#frequencies" rel="external">CSS 3 (Values)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/length#Absolute_length_units" title="en/CSS/length#Absolute_length_units"><code>in</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#absolute0" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/frequency" title="en/CSS/frequency"><code>kHz</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#frequencies" rel="external">CSS 3 (Values)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/length#Absolute_length_units" title="en/CSS/length#Absolute_length_units"><code>mm</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#absolute0" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/time" title="en/CSS/time"><code>ms</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#times" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>2.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/length#Absolute_length_units" title="en/CSS/length#Absolute_length_units"><code>pc</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#absolute0" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/length#Relative_length_units" title="en/CSS/length#Relative_length_units"><code>px</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#px" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/length#Absolute_length_units" title="en/CSS/length#Absolute_length_units"><code>pt</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#absolute0" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/angle" title="en/CSS/angle"><code>rad</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#angles" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.9.1</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/length#Relative_length_units" title="en/CSS/length#Relative_length_units"><code>rem</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#rem" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>1.9.2</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/time" title="en/CSS/time"><code>s</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#times" rel="external">CSS 3 (Values)</a></td> <td>Yes</td> <td>2.0</td> <td>-</td> </tr> <tr> <td><a href="/en/CSS/angle" title="en/CSS/angle"><code>turn</code></a></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#angles" rel="external">CSS 3 (Values)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>vh</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#vh" rel="external">CSS 3 (Values)</a></td> <td>No</td> <td>-</td> <td rowspan="3">See {{ Bug(503720) }}.</td> </tr> <tr> <td><code>vm</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#vm" rel="external">CSS 3 (Values)</a></td> <td>No</td> <td>-</td> </tr> <tr> <td><code>vw</code></td> <td><a class="external" href="http://www.w3.org/TR/css3-values/#vw" rel="external">CSS 3 (Values)</a></td> <td>No</td> <td>-</td> </tr> <tr> <th colspan="5">Images and gradients</th> </tr> <tr> <td><code>image()</code></td> <td><a class="external" href="http://dev.w3.org/csswg/css3-images/#image-notation" rel="external">CSS 3 (Images)</a></td> <td>No</td> <td>-</td> <td>-</td> </tr> <tr> <td><code>linear-gradient()</code></td> <td><a class="external" href="http://dev.w3.org/csswg/css3-images/#linear-gradients" rel="external">CSS 3 (Images)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/linear-gradient" title="en/CSS/-moz-linear-gradient"><code>-moz-linear-gradient()</code></a> is supported since Gecko 1.9.2.</td> </tr> <tr> <td><code>radial-gradient()</code></td> <td><a class="external" href="http://dev.w3.org/csswg/css3-images/#radial-gradients" rel="external">CSS 3 (Images)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/radial-gradient" title="en/CSS/-moz-radial-gradient"><code>-moz-radial-gradient()</code></a> is supported since Gecko 1.9.2.</td> </tr> <tr> <td><code>repeating-linear-gradient()</code></td> <td><a class="external" href="http://dev.w3.org/csswg/css3-images/#linear-gradients" rel="external">CSS 3 (Images)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/repeating-linear-gradient" title="en/CSS/-moz-repeating-linear-gradient"><code>-moz-repeating-linear-gradient()</code></a> is supported since Gecko 1.9.2.</td> </tr> <tr> <td><code>repeating-radial-gradient()</code></td> <td><a class="external" href="http://dev.w3.org/csswg/css3-images/#radial-gradients" rel="external">CSS 3 (Images)</a></td> <td>No</td> <td>-</td> <td><a href="/en/CSS/repeating-radial-gradient" title="en/CSS/-moz-repeating-radial-gradient"><code>-moz-repeating-radial-gradient()</code></a> is supported since Gecko 1.9.2.</td> </tr> </tbody>
</table>
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