chromium/third_party/blink/web_tests/fast/css/counters/counter-reset-000.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>CSS Test: dynamic changes to 'counter-increment'</title>
    <link rel="author" href="http://dbaron.org/" title="L. David Baron">
    <link rel="help" href="http://www.w3.org/TR/CSS21/generate.html#counters">
    <link rel="help" href="http://www.w3.org/TR/CSS21/generate.html#propdef-content">
    <link rel="help" href="http://www.w3.org/TR/CSS21/syndata.html#counter">
    <meta content="dom" name="flags">
    <meta http-equiv="Content-Script-Type" content="text/javascript">
    <style type="text/css">
      body { white-space: nowrap; }
      #test, .reset { counter-reset: c; }
      .increment::before { content: counters(c, ".") "-"; }
      .increment { counter-increment: c; }
    </style>
    <script type="text/javascript">
      if (window.testRunner) {
        testRunner.dumpAsText();
        testRunner.waitUntilDone();
      }

      function run() {
        var t = document.getElementById("test");
        var s = document.createElement("span");
        s.setAttribute("class", "reset");
        s.setAttribute("id", "newSpan");
        t.insertBefore(s, t.childNodes.item(1));
        if (window.testRunner) {
          testElement = document.getElementById("test");
          console = document.getElementById("console");
          spanList = testElement.getElementsByTagName("span")
          for (i = 0; i < spanList.length; ++i ) {
            newSpanElement = document.createElement("span");
            newSpanElement.innerText =
              internals.counterValue(document.getElementById(spanList.item(i).getAttribute("id")));
            if (newSpanElement.innerText.length)
              newSpanElement.innerText = newSpanElement.innerText + "-"
            console.appendChild(newSpanElement);
          }
          testRunner.notifyDone();
        }
      }
    </script>
  </head>
  <body onload="setTimeout('run()', 0)">
    <p>The following two lines should be the same:</p>
    <div id="test">
      <!-- Here <span class="reset" id="newSpan"></span> will be inserted -->
      <span id="span1" class="increment"></span>
      <span id="span2" class="reset"></span>
      <span id="span3" class="increment"></span>
      <span id="span4" class="increment"></span>
    </div>
    <div id="reference">1- 2- 3-</div>
    <hr>
    <div id="console"/>
  </body>
</html>