wpt/css/css-pseudo/highlight-cascade/cascade-highlight-002.html at master · web-platform-tests/wpt · GitHub

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<!DOCTYPE html>

  <meta charset="UTF-8">

  <title>CSS Pseudo-Elements Test: tag selector missing (Example 12)</title>

  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
  <link rel="help" href="https://www.w3.org/TR/css-pseudo-4/#highlight-cascade">
  <link rel="match" href="cascade-highlight-001-ref.html">

  <!--
  Example 12 is
  https://www.w3.org/TR/css-pseudo-4/#example-97480f68
  -->

  <meta name="assert" content="This test is an adaptation (or modified version) of Example 12 (#example-97480f68). In this test, &ltspan&gt; element's ::selection matches the ::selection { background-color: green; } rule and not the div#test::selection rule because '*' is implied when a tag selector is missing.">

  <link rel="stylesheet" href="../support/highlights.css">
  <style>
  div
    {
      font-size: 300%;
    }

  ::selection
    {
      background-color: green;
      color: yellow;
    }

  div#test::selection
    {
      background-color: red;
      color: black;
    }
  </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 background color of "Text sample" is green and <strong>not red</strong>.

  <div id="test" class="highlight_reftest"><span>Text sample</span></div>