<!DOCTYPE html>
<html class="reftest-wait">
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://www.w3.org/TR/css-multicol-1/">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1066640">
<link rel="match" href="increase-prev-sibling-height-ref.html">
<p>The word "PASS" should be seen below.</p>
<div id="elm" style="background:black;"></div>
<div style="columns:2;">
  PASS
</div>
<script>
  requestAnimationFrame(()=>{
      requestAnimationFrame(()=>{
          elm.style.height = "2em";
          document.documentElement.classList.remove("reftest-wait");
      });
  });
</script>
</html>
