<!DOCTYPE HTML> <html style="background:yellow;"> <title>CSS 2.1 Test Suite: Test for containing block for absolutely positioned elements being initial containing block</title> <link rel="author" title="Robert O'Callahan" href="mailto:robert@ocallahan.org" /> <link rel="author" title="Mozilla Corporation" href="http://mozilla.com/" /> <body style="margin:0"> <div style="border:10px solid black; width:100px; height:100px;"></div> </body> </html>