<!DOCTYPE html> <html class="reftest-wait"> <head> <body style="white-space:pre">0123456789 <script> document.body.offsetTop; // Test focus < newfocus < anchor var t = document.body.firstChild; var sel = window.getSelection(); sel.collapse(t, 8); // anchor sel.extend(t, 1); // focus function doTest() { sel.extend(t, 2); // newfocus document.documentElement.removeAttribute('class'); } document.addEventListener("MozReftestInvalidate", doTest, false); </script> </body> </html>