<!DOCTYPE html> <html> <head> <title>CSS 2.1 Test Suite: handling of blocks inside inlines</title> <link rel="author" title="Boris Zbarsky" href="mailto:bzbarsky@mit.edu" /> <link rel="author" title="Mozilla Corporation" href="http://mozilla.com/" /> <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#anonymous-block-level"/> <meta name="flags" content="dom" /> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"> body > span { outline: 1px dotted black; } body > span > span { display: block; width: 10em; } </style> <script> function boom() { var n = document.getElementById("a"); n.parentNode.appendChild(n.cloneNode(true)); } </script> </head> <body onload="boom();"> <span><span id="a">A</span></span> </body> </html>