clipping-ancestor-with-accelerated-scrolling-ancestor.html

<!DOCTYPE html>
<html>
<head>
  <meta name=viewport content="width=device-width">
  <style>
    .scrollable {
      overflow: scroll;
      width: 300px;
      height: 300px;
    }
    .container {
      overflow: hidden;
    }
    .indicator {
      position: relative;
      top: 100px;
      background-color: red;
    }
    .box {
      width: 100px;
      height: 100px;
    }
  </style>
  <script>
    if (window.internals)
      internals.settings.setPreferCompositingToLCDTextEnabled(true);
  </script>
</head>

<body>
  <!-- Expect no red (a blank page) -->
  <div class="scrollable">
    <div class="container box">
      <div class="indicator box"></div>
    </div>
  </div>
</body>

</html>

chromium/third_party/blink/web_tests/compositing/overflow/clipping-ancestor-with-accelerated-scrolling-ancestor.html