<!DOCTYPE HTML> <html class="reftest-wait"> <head> <meta charset="utf-8"> <style type="text/css"> #a_box { overflow:auto; width:100px; height:100px; border:1px solid black; } #item { width:40px; height:40px; position:relative; background-color:#666; } </style> </head> <body onload="runTest();"> <div id="a_box"> <div id="item"></div> </div> <script> function runTest() { document.getElementById("item").style.transform = "translate(80px, 80px)"; document.documentElement.removeAttribute("class"); } </script> </body> </html>