CSS flex-basis

on Sep 10, 2016

CSS flex-basis define the initial base size of the flex-item. Note that the final size of flex-item will depend upon flex-grow and flex-shrink values.

Syntax:

.someflexcontainer {
  display: flex;
}
.flexitem {
  flex-basis: 20%;
}

CSS property flex-basis

CSS version:	CSS 3
Value:	content \| [width]
Initial:	auto
Applies to:	flex items
Inherited:	no

Example – flex-basis

In the following code, CSS property flex-basis can be changed to the following values

20%
content

<style>
.fbox {
  display: flex;
  width: 250px; background-color:gray;
}
.child {
  background-color:green;
  padding: 3px; margin: 3px;
  flex-basis: 20%;
}
</style>

<div class=fbox>
<div class="child">div1</div>
<div class="child">div2 long</div>
<div class="child">div3</div>
</div>

flex-basis refresh

try it online