css/css-multicol/resize-in-strict-containment-nested.html

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1279078">
<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="columns:2; column-gap:0; column-fill:auto; width:200px; height:100px; margin-left:-100px;">
  <div style="columns:1;">
    <div style="height:1px; break-after:column;"></div>
    <div style="width:100px; height:100px; contain:strict; background:red;">
      <div id="target" style="width:1px; height:100px; background:green;"></div>
    </div>
  </div>
</div>
<script>
  document.body.offsetTop;
  target.style.width = "100px";
</script>