<flex>
A shorthand property that defines how a flex item grows or shrinks to fit the available space in its container.
Quick example
.item {
flex: 1 1 300px;
/* shorthand for flex-grow, flex-shrink, and flex-basis */
}<flex> Browser Support
Widely available Since 2017 96% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2017.
Safe to use without fallbacks.
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