chromium/third_party/blink/web_tests/external/wpt/css/css-flexbox/percentage-heights-008.html

<!DOCTYPE html>
<title>Fixed indefinite heights</title>
<link rel="author" title="David Grogan" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#definite-sizes">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<meta name="assert" content="Percent height flex items in a nested column flexbox have height resolved to auto." />

<style>
.column-flexbox {
  display: flex;
  flex-direction: column;
}

#percent-height-item {
  height: 50%;
  background: red;
}

#fixed-height-item {
  height: 100px;
  width: 100px;
  background: green;
}
</style>

<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>

<div class=column-flexbox>
  <div class=column-flexbox>
    <div id=fixed-height-item></div>
    <div id=percent-height-item></div>
  </div>
</div>