<!DOCTYPE HTML> <html class="reftest-wait"> <head> <title>bug 536421</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <style> input { border:1px solid blue; } </style> </head> <body onload="doTest()"> <input value="test" id="textbox" onfocus="triggerBug();" type="text"> <script type="text/javascript"> function finishTest() { document.documentElement.removeAttribute("class"); } function triggerBug() { var t = document.getElementById("textbox"); t.style.display = "none"; document.body.offsetWidth; t.style.display = ""; finishTest(); } function doTest() { var t = document.getElementById("textbox"); t.focus(); } </script> </body> </html>