<!DOCTYPE html>
<div id="container" style="width: 200px; height: 200px; border-radius: 80px; overflow: auto; will-change: transform">
  <div style="height: 1000px; background: blue"></div>
</div>
<script src="../../../resources/run-after-layout-and-paint.js"></script>
<script>
runAfterLayoutAndPaint(function() {
  container.style.height = '400px';
}, true);
</script>