<!DOCTYPE HTML> <html class="reftest-wait"> <head> <script> function doTest() { document.getElementById("inner").style.height = "0"; document.documentElement.removeAttribute("class"); } window.addEventListener("MozReftestInvalidate", doTest); </script> </head> <body> <div style="overflow:auto; width:100px; height:100px;"> <div id="inner" style="height:200px;"></div> </div> </body> </html>