flex-shrink

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

In use, flex-shrink is used alongside the other flex properties flex-grow and flex-basis, and normally defined using the flex shorthand.

Syntax

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

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

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

Values

<number>: See <number>. Negative values are invalid. Defaults to 1.

Formal definition

Initial value	`1`
Applies to	flex items, including in-flow pseudo-elements
Inherited	no
Computed value	as specified
Animation type	a number

Formal syntax

<number>

Examples

Setting flex item shrink factor

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
CSS Flexible Box Layout Module Level 1 (CSS Flexbox 1) # flex-shrink-property

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`flex-shrink`	29 22	12 12	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	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 15	9 8	4.4 ≤37	29 25	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	12.1 14	9 8	2.0 1.5