The flex-shrink CSS property specifies the flex shrink factor of a flex item.

Initial value1
Applies toflex items, including in-flow pseudo-elements
Computed valueas specified
Animatableyes, as a number
Canonical orderthe unique non-ambiguous order defined by the formal grammar

See Using CSS flexible boxes for more properties and information.


flex-shrink: 2;
flex-shrink: 0.6;

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


See <number>. Negative values are invalid.

Formal syntax




<h4>This is a Flex-Grow</h4>
<h5>A,B,C and F are flex-shrink:1 . D and E are flex-grow:1 .</h5>
<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 class="box" style="background-color:brown;">F</div>


#content {
  -ms-box-orient: horizontal;
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -moz-flex;
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: space-around;
  justify-content: space-around;
  -webkit-flex-flow: row wrap;
  flex-flow: row wrap;
  -webkit-align-items: stretch;
  align-items: stretch;

.box { 
flex-shrink: 1; 
border: 3px solid rgba(0,0,0,.2);

.box1 { 
flex-grow: 1; 
border: 3px solid rgba(0,0,0,.2);



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

Browser compatibility

Feature Firefox (Gecko) Chrome Internet Explorer Opera Safari
Basic support 18.0 (18.0) (behind a pref) [1]
32.0 (32.0) [2]
21.0-webkit 10 [3] 12.10 8.0-webkit
Feature Firefox Mobile (Gecko) Android IE Phone Opera Mobile Safari Mobile
Basic support 18.0 (18.0) (behind a pref) [1]
32.0 (32.0) [2]
? No support 12.10 No support

[1] Firefox supports only single-line flexbox until Firefox 28. To activate flexbox support, for Firefox 18 and 19, the user has to change the about:config preference "layout.css.flexbox.enabled" to true.

[2] Before Firefox 32, Gecko wasn't able to animate values starting or stopping at 0(Spec, Demo).

[3] 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.

See also

Document Tags and Contributors

 Last updated by: vertigoback,