<html>
<style>
    #scrollme {
        width: 100px;
        height: 100px;
        overflow: auto;
    }
    #scrollme p {
        width: 1000px;
        height: 1000px;
    }
</style>
<script>
  if (window.internals) {
      window.internals.setUsesOverlayScrollbars(true);
  }
</script>
<body>
  <p>This is a test for <a href="https://bugs.webkit.org/show_bug.cgi?id=153352">https://bugs.webkit.org/show_bug.cgi?id=153352</a></p>
  <div id="scrollme"><p>This is a scrollable div.</p></div>
</body>
</html>