css/css-multicol/resize-multicol-with-fixed-size-children.html

<!DOCTYPE html>
<html class="reftest-wait">
  <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
  <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1336180">
  <link rel="match" href="../reference/ref-filled-green-100px-square.xht">
  <style>
    div.item {
      width:50px;
      height:50px;
      background:green;
    }
  </style>
  <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
  <div id="container" style="columns:2; gap:0; column-fill:auto; width:200px; height:100px; background:red;">
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
  </div>

  <script>
    requestAnimationFrame(()=> {
      requestAnimationFrame(()=> {
        container.style.width = "100px";
        document.documentElement.classList.remove("reftest-wait");
      });
    });
  </script>
</html>