<html xmlns="http://www.w3.org/1999/xhtml">
  <body>
    <div style="width: 100px; height: 100px; position: absolute; top: 30px; left: 0; background-color: red;"></div>
    <div style="width: 200px; height: 200px; position: absolute; top: 30px; left: 0;">
      <svg id="svgRoot" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
        <rect id="rect" width="50%" height="50%" fill="green" />
      </svg>
    </div>
  <script>
    if (window.eventSender)
      eventSender.textZoomIn();
    else
      document.body.appendChild(document.createTextNode("Use the View menu to zoom in. There should be no red."));
  </script>
  </body>
</html>