chromium/chrome/test/data/scroll/scrollable_page_with_content_rtl.html

<html dir="rtl">
  <head>
    <meta name="viewport" content="width=device-width, minimum-scale=1.0">
    <style>
      p {
        position: absolute;
        right: 10000px;
        top: 10000px;
      }
    </style>
  </head>
  <body>
    <p>Some text</p>
  </body>
</html>