chromium/third_party/blink/web_tests/external/wpt/css/css-multicol/change-intrinsic-width.html

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:[email protected]">
<link rel="help" href="https://www.w3.org/TR/css-multicol-1/#pseudo-algorithm">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1037790">
<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-fill:auto; column-gap:0; width:fit-content; height:100px; background:red;">
  <div id="firstChild" style="width:200px; height:100px; background:green;"></div>
  <div style="width:50px; height:100px; background:green;"></div>
</div>
<script>
  document.body.offsetTop;
  firstChild.style.width = "50px";
</script>