<head>
<style>
#a:nth-child(1n+0) { color: green; }
#b:nth-child(n+0)  { color: green; }
#c:nth-child(n)    { color: green; }
#d:nth-child(-n+0) { color: green; }
#e:nth-child(-n)   { color: green; }

#f:nth-child(1N+0) { color: green; }
#g:nth-child(N+0)  { color: green; }
#h:nth-child(N)    { color: green; }
#i:nth-child(-N+0) { color: green; }
#j:nth-child(-N)   { color: green; }

#k:nth-child(+ 1n) { color: green; }
#l:nth-child(-1N
  -
  123  ) { color: green; }
#m:nth-child(  N- 123) { color: green; }
#n:nth-child(  n +12 3) { color: green; }
#o:nth-child( 23n

 +

123  ) { color: green; }
#p:nth-child(  12 n ) { color: green; }
#q:nth-child(+12n-0+1) { color: green; }
#r:nth-child(+12N -- 1) { color: green; }
#s:nth-child(+12 N ) { color: green; }
#t:nth-child(+n+3) { color: green; }
#u:nth-child( +n + 7 ) { color: green; }
#v:nth-child(+ n + 7) { color: green; }
</style>

<script>

/** Changes the result text font size. */
function runTest()
{
    if (window.testRunner)
        testRunner.dumpAsText();

    var rules = document.styleSheets[0].cssRules;
    var text = "";
    for (var i = 0; i < rules.length; i++) {
        text += rules.item(i).cssText;
        text += "\n";
    }

    document.getElementById("result").appendChild(document.createTextNode(text));

    if (document.getElementById("result").firstChild.data === document.getElementById("expected").firstChild.data)
        document.getElementById("message").firstChild.data = "SUCCESS";
    else
        document.getElementById("message").firstChild.data = "FAILURE";
}

</script>

</head>

<body onload="runTest()">

<p>Test parsing of CSS nth-child tokens.</p>

<p id="message">TEST DID NOT COMPLETE</p>

<p>Rules from the stylesheet:</p>

<pre id="result"></pre>

<p>Expected result:</p>

<pre id="expected">#a:nth-child(n) { color: green; }
#b:nth-child(n) { color: green; }
#c:nth-child(n) { color: green; }
#d:nth-child(-n) { color: green; }
#e:nth-child(-n) { color: green; }
#f:nth-child(n) { color: green; }
#g:nth-child(n) { color: green; }
#h:nth-child(n) { color: green; }
#i:nth-child(-n) { color: green; }
#j:nth-child(-n) { color: green; }
#l:nth-child(-n-123) { color: green; }
#m:nth-child(n-123) { color: green; }
#o:nth-child(23n+123) { color: green; }
#t:nth-child(n+3) { color: green; }
#u:nth-child(n+7) { color: green; }
</pre>

<script>

</script>
</body>