<html class="reftest-wait"> <title>Testcase, bug 143862</title> <style type="text/css" id="one"> html { overflow: hidden; } </style> <style type="text/css" id="two"></style> <script type="text/javascript"> function remove(elt) { elt.parentNode.removeChild(elt); } function run() { remove(document.getElementById("one")); remove(document.getElementById("two")); document.documentElement.removeAttribute("class"); } setTimeout(run, 100); </script> </html>