flex-grow
Defines the ability for a flex item to grow if necessary. It accepts a unitless value that serves as a proportion; it dictates how much of the available space inside the flex container the item should take up.
Usage example
.sidebar { flex-grow: 0; } /* stays fixed width */
.main-content { flex-grow: 1; } /* grows to fill all remaining space */Initial value
0
Inherited
No
Applies to
flexItemsAndInFlowPseudos
Animation type
number
flex-grow Browser Support
Widely available Since 2015 96% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2015.
Safe to use without fallbacks.
29+
20+
9+
12+