<!DOCTYPE html>
<meta charset="utf-8">
<title>Tests that we consider main axis sizes to be definite in column flexboxes
when the height is an explicit definite height, even if the container does
not have a definite main axis size.</title>
<link rel="author" title="Google Inc." href="https://www.google.com/">
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#definite-sizes">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht" />

<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div style="display:flex; flex-direction:column;">
  <div style="width:100px; height:100px; background:red;">
    <div style="height:100%; background:green;"></div>
  </div>
</div>