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/CSS

flex-shrink

The flex-shrink CSS property sets the flex shrink factor of a flex item. If the size of flex items is larger than the flex container, items shrink to fit according to flex-shrink.

Syntax

/* <number> values */
flex-shrink: 2;
flex-shrink: 0.6;

/* Global values */
flex-shrink: inherit;
flex-shrink: initial;
flex-shrink: unset;

The flex-shrink property is specified as a single <number>.

Values

<number>: See <number>. Negative values are invalid.

Formal syntax

<number>

Example

HTML

<p>The width of content is 500px; the flex-basis of the flex items is 120px.</p>
<p>A, B, C have flex-shrink:1 set. D and E have flex-shrink:2 set</p>
<p>The width of D and E is less than the others.</p>
<div id="content">
  <div class="box" style="background-color:red;">A</div>
  <div class="box" style="background-color:lightblue;">B</div>
  <div class="box" style="background-color:yellow;">C</div>
  <div class="box1" style="background-color:brown;">D</div>
  <div class="box1" style="background-color:lightgreen;">E</div>
</div>

CSS

#content {
  display: flex;
  width: 500px;
}

#content div {
  flex-basis: 120px;
  border: 3px solid rgba(0,0,0,.2);
}

.box { 
  flex-shrink: 1;
}

.box1 { 
  flex-shrink: 2; 
}

Result

Specifications

Specification	Status	Comment
CSS Flexible Box Layout Module The definition of 'flex-shrink' in that specification.	Candidate Recommendation	Initial definition

Initial value	`1`
Applies to	flex items, including in-flow pseudo-elements
Inherited	no
Media	visual
Computed value	as specified
Animation type	a number
Canonical order	the unique non-ambiguous order defined by the formal grammar

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	29 29 21 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	12 12 12 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	20 20 Since Firefox 28, multi-line flexbox is supported. Before Firefox 32, Firefox wasn't able to animate values starting or stopping at `0`. 49 Prefixed Prefixed Implemented with the vendor prefix: -webkit- 44 Prefixed Disabled Prefixed Implemented with the vendor prefix: -webkit- Disabled From version 44: this feature is behind the `layout.css.prefixes.webkit` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config. 18 — 20 Disabled Disabled From version 18 until version 20 (exclusive): this feature is behind the `layout.css.flexbox.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	10 10 Internet Explorer 10 uses `0` instead of `1` as the initial value for the `flex-shrink` property. A workaround is to always set an explicit value for `flex-shrink`. See Flexbug #6 for more info.	12.1 12.1 15 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	8 Prefixed 8 Prefixed Prefixed Implemented with the vendor prefix: -webkit-

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	4.4 4.4 Yes Prefixed Prefixed Implemented with the vendor prefix: -webkit-	29 29 25 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	Yes Yes Yes Prefixed Prefixed Implemented with the vendor prefix: -webkit-	20 20 Since Firefox 28, multi-line flexbox is supported. Before Firefox 32, Firefox wasn't able to animate values starting or stopping at `0`. 49 Prefixed Prefixed Implemented with the vendor prefix: -webkit- 44 Prefixed Disabled Prefixed Implemented with the vendor prefix: -webkit- Disabled From version 44: this feature is behind the `layout.css.prefixes.webkit` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config. 18 — 20 Disabled Disabled From version 18 until version 20 (exclusive): this feature is behind the `layout.css.flexbox.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	12.1 12.1 15 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	?	?