<!DOCTYPE html> <html class="reftest-wait"> <head> <title>menclose phasorangle</title> <script type="text/javascript"> function doTest() { document.getElementById('testMenclose').removeAttribute("notation"); document.documentElement.removeAttribute("class"); } window.addEventListener("MozReftestInvalidate", doTest, false); </script> </head> <body> <p> <math> <menclose id="testMenclose" notation="phasorangle"> <mspace width="100px" height="50px" mathbackground="blue"></mspace> </menclose> </math> </p> </body> </html>