<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Strict//EN">
<html>
<head>
    <title>CSS Test: :nth-child selector with unary prefix on step</title>
    <style type="text/css">
    div div:nth-child(+2n+1)
    {
        color: green;
    }
</style>
<script>
if (window.testRunner)
  window.testRunner.dumpAsText()
</script>
</head>
<body>
    <p>The test passes if the odd numbered DIVs are green.</p>
      <div id="test">
          <div>DIV1</div>
          <div>DIV2</div>
      </div>
      <div id="testresult" style="color: blue">Running</div>
    <script type="text/javascript">
                function ArrayContains(array, value, ci)
                {
                    ci = ci == true ? true : false;
                    for (var i = 0; i < array.length; i++)
                    {
                        if (ci && array[i].toLowerCase() == value.toLowerCase())
                        {
                            return true;
                        }
                        else if (array[i] == value)
                        {
                            return true;
                        }
                    }
                    return false;
                }
        function TestCase()
        {
            try
            {
                var greenValues = new Array("green", "#008000", "rgb(0, 128, 0)");

                var elem = document.getElementById("test");
                var val = getComputedStyle(elem.children[0], null).getPropertyValue("color");
                if (ArrayContains(greenValues, val, false))
                {
                    document.getElementById("testresult").innerHTML = "Pass";
                    return;
                }
            }catch(e){}
            document.getElementById("testresult").innerHTML = "Fail";
        }
        TestCase();
    </script>
</body>
</html>