<!DOCTYPE html> <html class="reftest-wait"> <head> <title>menclose box</title> <meta charset="utf-8"/> <script type="text/javascript"> function doTest() { var box = document.getElementById("box").getBoundingClientRect(); r = document.getElementById("rect"); r.setAttribute("x", box.left ); r.setAttribute("y", box.top ); r.setAttribute("width", box.width ); r.setAttribute("height", box.height ); document.documentElement.removeAttribute("class"); } window.addEventListener("MozReftestInvalidate",doTest, false); </script> </head> <body> <div style="position: absolute; left: 20px; top: 20px;"> <math> <menclose id="box" notation="box"> <mspace width="200px" height="100px"></mspace> </menclose> </math> </div> <div style="position: absolute; left: 0px; top: 0px;"> <svg width="500px" height="500px"> <rect id="rect" style="fill: none; stroke-width: 3px; stroke: green; stroke-linecap: round; shape-rendering: crispEdges;"></rect> </svg> </div> </body> </html>