max-inline-size

The max-inline-size CSS property defines the horizontal or vertical maximum size of an element's block, depending on its writing mode. It corresponds to either the max-width or the max-height property, depending on the value of writing-mode.

If the writing mode is vertically oriented, the value of max-inline-size relates to the maximal height of the element; otherwise, it relates to the maximal width of the element. A related property is max-block-size, which defines the other dimension of the element.

Syntax

/* <length> values */
max-inline-size: 300px;
max-inline-size: 25em;

/* <percentage> values */
max-inline-size: 75%;

/* Keyword values */
max-inline-size: auto;
max-inline-size: max-content;
max-inline-size: min-content;
max-inline-size: fit-content(20em);

/* Global values */
max-inline-size: inherit;
max-inline-size: initial;
max-inline-size: unset;

Values

The max-inline-size property takes the same values as the max-width and max-height properties.

Formal definition

Initial value0
Applies tosame as width and height
Inheritedno
Percentagesinline-size of containing block
Computed valuesame as max-width and max-height
Animation typea length, percentage or calc();

Formal syntax

<'max-width'>

Examples

Setting maximum inline size in pixels

HTML

<p class="exampleText">Example text</p>

CSS

.exampleText {
  writing-mode: vertical-rl;
  background-color: yellow;
  block-size: 100%;
  max-inline-size: 200px;
}

Result

Specifications

Specification Status Comment
CSS Logical Properties and Values Level 1
The definition of 'max-inline-size' in that specification.
Editor's Draft Initial definition

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
max-inline-sizeChrome Full support 57Edge Full support 79Firefox Full support 41
Full support 41
No support 38 — 51
Disabled
Disabled From version 38 until version 51 (exclusive): this feature is behind the layout.css.vertical-text.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera Full support 44Safari Full support 12.1
Full support 12.1
Full support 10.1
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
WebView Android Full support 57Chrome Android Full support 57Firefox Android Full support 41
Full support 41
No support 38 — 51
Disabled
Disabled From version 38 until version 51 (exclusive): this feature is behind the layout.css.vertical-text.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android Full support 43Safari iOS Full support 12.2
Full support 12.2
Full support 10.3
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
Samsung Internet Android Full support 7.0
fit-contentChrome Full support 57Edge Full support 79Firefox Full support 38
Prefixed
Full support 38
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
IE No support NoOpera Full support 44Safari Full support 12.1WebView Android Full support 57Chrome Android Full support 57Firefox Android Full support 38
Prefixed
Full support 38
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
Opera Android Full support 43Safari iOS Full support 12.2Samsung Internet Android Full support 7.0
Alternate Name
Full support 7.0
Alternate Name
Alternate Name Uses the non-standard name: -webkit-fill-available
max-contentChrome Full support 57Edge Full support 79Firefox Full support 66
Full support 66
Full support 41
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
IE No support NoOpera Full support 44Safari Full support 12.1WebView Android Full support 57Chrome Android Full support 57Firefox Android Full support 66
Full support 66
Full support 41
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
Opera Android Full support 43Safari iOS Full support 12.2Samsung Internet Android Full support 7.0
min-contentChrome Full support 57Edge Full support 79Firefox Full support 66
Full support 66
Full support 41
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
IE No support NoOpera Full support 44Safari Full support 12.1WebView Android Full support 57Chrome Android Full support 57Firefox Android Full support 66
Full support 66
Full support 41
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
Opera Android Full support 43Safari iOS Full support 12.2Samsung Internet Android Full support 7.0

Legend

Full support  
Full support
No support  
No support
User must explicitly enable this feature.
User must explicitly enable this feature.
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