<html xmlns="http://www.w3.org/1999/xhtml"> <head> <script> function run() { var a = getComputedStyle(document.getElementById("s1"), "").listStyleType; var b = getComputedStyle(document.getElementById("s3"), "").listStyleType; } </script> <style type="text/css"> body { display: none } /* so we control the order of the ComputeListData calls */ #s1, #s2, #s3 { -moz-image-region: auto; list-style-image: none; list-style-position: outside; list-style-type: disc; } #s2, #s3 { list-style-type: disc; } </style> </head> <body onload="run();"> <div id="s1"><div id="s2"><div id="s3"></div></div></div> </body> </html>