mixed-opacity-fixed-test.html | Explore in Territory

<!DOCTYPE html>
<div style="position:absolute; will-change:transform; contain:strict; height:500px;">
  <div style="columns:2; column-gap:20px; column-fill:auto; width:420px; height:200px; border:2px solid black;">
    <div style="opacity:0.5;">
      <div style="height:400px; background:green;"></div>
      <div style="position:fixed; height:98px; width:98px; left:170px; top:220px; background:green; border:1px solid lime;"></div>
    </div>
  </div>
</div>

chromium/third_party/blink/web_tests/fast/multicol/mixed-opacity-fixed-test.html