<!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" /> <style> #i { border: 2px solid; } #i::after { display: block; content: "Two"; } </style> <script> function doTest() { var i = document.getElementById("i"); i.insertBefore(document.createTextNode("One"), i.firstChild); } </script> </head> <body onload="doTest()"> <span id="i"><span style="display: none"></span></span> </body> </html>