<!DOCTYPE html>
<link rel="help" href="https://www.w3.org/TR/css-flexbox-1/#flex-basis-property">
<link rel="match" href="reference/auto-height-with-flex-ref.html">
<meta name="assert" content="This test ensures that a vertical flexbox (with auto height) and a flexitem with flex: 1; will not have 0 set to the flex basis, but to auto instead."/>
<div style="display: flex; flex-direction: column; border: 1px solid purple;">
<div>Header</div>
<div style="flex: 1">Flexible content<br>
</div>
</div>