<!DOCTYPE html> <html class="reftest-wait"> <head> <title>mfrac bevelled</title> <script type="text/javascript"> function doTest() { document.getElementById("testMfrac").removeAttribute("bevelled"); document.documentElement.removeAttribute("class"); } window.addEventListener("MozReftestInvalidate",doTest, false); </script> </head> <body> <math> <mfrac id="testMfrac" style="font-size: 300%" bevelled="true"> <mspace width="20px" height="20px" mathbackground="red"></mspace> <mspace width="20px" height="20px" mathbackground="red"></mspace> </mfrac> </math> </body> </html>