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chromium/third_party/blink/renderer/core/testing/data/very_tall_div.html 

<html>
  <body>
    <div style="background-color: green; position: absolute; left: 200px; top: 300px; width: 400px; height: 5000">
      <p id="veryTallDiv">Very tall div</p>
    </div>
  </body>
</html>