chromium/third_party/blink/web_tests/external/wpt/css/css-pseudo/active-selection-051-ref.html

<!DOCTYPE html>

  <meta charset="UTF-8">

  <title>CSS Reftest Reference</title>

  <link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">

   <style>
  div
    {
      font-size: 300%;
    }
  </style>

  <script>
  function startTest()
  {
  var targetRange = document.createRange();
  /* We first create an empty range */
  targetRange.selectNodeContents(document.getElementById("test"));
  /* Then we set the range boundaries to the children of div#test */
  window.getSelection().addRange(targetRange);
  /* Finally, we now select such range of content */
  }
  </script>

  <body onload="startTest();">

  <p>Test passes if "Selected Text" appears selected using the OS selection colors.

  <div id="test">Selected Text</div>