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flex-grow

Summary

The flex-grow CSS property specifies the flex grow factor of a flex item. It specifies what amount of space inside the flex container the item should take up.

See Using CSS flexible boxes for more properties and information.

Syntax

flex-grow: 3;

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

Values

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

Formal syntax

<number>

Examples

element { 
  flex-grow: 3;
}

Specifications

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

Browser compatibility

Feature Firefox (Gecko) Chrome Internet Explorer Opera Safari
Basic support 18.0 (18.0) [1]
20.0 (20.0) [2]
21.0-webkit 11 12.10 Not supported
Feature Firefox Mobile (Gecko) Android IE Phone Opera Mobile Safari Mobile
Basic support 18.0 (18.0) [1]
20.0 (20.0) [2]
? Not supported 12.10 Not supported

[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.

See also

Document Tags and Contributors

Last updated by: Sebastianz,