chromium/third_party/blink/web_tests/external/wpt/css/css-position/sticky/position-sticky-escape-scroller-004.html

<!DOCTYPE html>
<title>CSS Positioned Layout Test: a sticky element contained by absolute under a scroller not containing absolute</title>
<link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos">
<link rel="help" href="https://crbug.com/881555">
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/3185">
<link rel="match" href="position-sticky-escape-scroller-004-ref.html">
<style>body { margin: 0 }</style>
<div id="scroller" style="width: 200px; height: 200px; overflow: scroll">
  <div style="position: absolute; top: 100px; height: 2000px">
    <div style="position: sticky; top: 0; width: 200px; height: 200px; background: green"></div>
  </div>
  <div style="height: 1000px; background: red"></div>
</div>
<div style="height: 3000px"></div>
<script>
window.scrollTo(0, 1000);
</script>