<html class="reftest-wait">
<head>
<style id="style">
.ch1 { counter-increment: chicken; }
</style>
<script>
function boom()
{
document.getElementsByTagName("ol")[0].setAttribute("class", "wtf");
document.getElementById("style").textContent = ".ch2 { counter-increment: chicken; }";
document.documentElement.removeAttribute("class");
}
</script>
</head>
<body onload="setTimeout(boom, 30);">
<ol>
<li class="ch1">item</li>
<li>item
<ol>
<li class="ch2">item</li>
</ol>
</li>
</ol>
<ol class="ch2">
<li>item</li>
</ol>
</body>
</html>