chromium/third_party/blink/web_tests/external/wpt/css/css-multicol/overflow-unsplittable-003.html

<!DOCTYPE html>
<title>
  Test that a scrollable container isn't split across multiple columns.
</title>
<link rel="help" href="https://www.w3.org/TR/css-break-3/#possible-breaks">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<p>Test passes if there is a filled green square.</p>
<div style="columns:2; column-gap:0; width:200px; height:50px;">
  <div style="overflow:hidden; width:100px; background:green;">
    <div style="height:100px;"></div>
  </div>
</div>