The min-width
CSS property sets the minimum width of an element. It prevents the used value of the width
property from becoming smaller than the value specified for min-width
.
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The element's width is set to the value of min-width
whenever min-width
is larger than max-width
or width
.
Syntax
/* <length> value */ min-width: 3.5em; /* <percentage> value */ min-width: 10%; /* Keyword values */ min-width: max-content; min-width: min-content; min-width: fit-content; min-width: fill-available; /* Global values */ min-width: inherit; min-width: initial; min-width: unset;
Values
<length>
- The minimum width, expressed as a
<length>
. Negative values make the declaration invalid. <percentage>
- The minimum width, expressed as a
<percentage>
of the containing block's width. Negative values make the declaration invalid.
Keyword values
auto
-
Specifies an automatic minimum size. Unless otherwise defined by the relevant layout module, however, it resolves to a used value of 0. For backward-compatibility, the resolved value of this keyword is zero for boxes of all [CSS2] display types: block and inline boxes, inline blocks, and all the table layout boxes.
max-content
- The intrinsic preferred width.
min-content
- The intrinsic minimum width.
fill-available
- The containing block's width minus the horizontal margin, border, and padding. (Note that some browsers implement an ancient name for this keyword,
available
.) fit-content
- Defined as
min(max-content, max(min-content, fill-available))
.
Formal syntax
<length> | <percentage> | auto | max-content | min-content | fit-content | fill-available
Examples
table { min-width: 75%; } form { min-width: 0; }
Specifications
Specification | Status | Comment |
---|---|---|
CSS Intrinsic & Extrinsic Sizing Module Level 3 The definition of 'min-width' in that specification. |
Working Draft | Adds the max-content , min-content , fit-content , and fill-available keywords. (Both CSS3 Box and CSS3 Writing Modes drafts used to define these keywords, but are superseded by this spec.) |
CSS Flexible Box Layout Module The definition of 'min-width' in that specification. |
Candidate Recommendation | Adds the auto keyword and uses it as the initial value. |
CSS Transitions The definition of 'min-width' in that specification. |
Working Draft | Defines min-width as animatable. |
CSS Level 2 (Revision 1) The definition of 'min-width' in that specification. |
Recommendation | Initial definition. |
Initial value | auto |
---|---|
Applies to | all elements but non-replaced inline elements, table rows, and row groups |
Inherited | no |
Percentages | refer to the width of the containing block |
Media | visual |
Computed value | the percentage as specified or the absolute length |
Animation type | a length, percentage or calc(); |
Canonical order | the unique non-ambiguous order defined by the formal grammar |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
min-width | Chrome Full support 1 | Edge Full support 12 | Firefox
Full support
1
| IE Full support 7 | Opera
Full support
4
| Safari Full support 1 | WebView Android Full support 4.4 | Chrome Android Full support 18 | Firefox Android
Full support
4
| Opera Android Full support Yes | Safari iOS Full support 1 | Samsung Internet Android Full support 1.0 |
auto | Chrome
Full support
21
| Edge
Full support
12
| Firefox
Full support
34
| IE No support No | Opera
Full support
12.1
| Safari No support No | WebView Android
Full support
37
| Chrome Android
Full support
25
| Firefox Android
Full support
34
| Opera Android ? | Safari iOS No support No | Samsung Internet Android ? |
fit-content | Chrome
Full support
46
| Edge No support No | Firefox
Full support
3
| IE No support No | Opera
Full support
15
| Safari
Full support
11
| WebView Android
Full support
46
| Chrome Android Full support 46 | Firefox Android
Full support
4
| Opera Android ? | Safari iOS
Full support
11
| Samsung Internet Android
Full support
5.0
|
max-content | Chrome
Full support
46
| Edge No support No | Firefox
Full support
66
| IE No support No | Opera
Full support
15
| Safari
Full support
11
| WebView Android
Full support
46
| Chrome Android Full support 46 | Firefox Android
Full support
66
| Opera Android ? | Safari iOS
Full support
11
| Samsung Internet Android Full support 5.0 |
min-content | Chrome
Full support
46
| Edge No support No | Firefox
Full support
66
| IE No support No | Opera Full support 44 | Safari
Full support
11
| WebView Android
Full support
46
| Chrome Android Full support 46 | Firefox Android
Full support
66
| Opera Android Full support 43 | Safari iOS
Full support
11
| Samsung Internet Android Full support 5.0 |
stretch | Chrome
Full support
22
| Edge No support No | Firefox No support No | IE No support No | Opera
Full support
15
| Safari No support No | WebView Android
Full support
4.4
| Chrome Android
Full support
25
| Firefox Android No support No | Opera Android
Full support
14
| Safari iOS No support No | Samsung Internet Android ? |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- See implementation notes.
- See implementation notes.
- Uses a non-standard name.
- Uses a non-standard name.
- Requires a vendor prefix or different name for use.
- Requires a vendor prefix or different name for use.
See also
width
,max-width
- The box model,
box-sizing