<!DOCTYPE HTML> <html style="position:absolute; left:100px; top:100px; width:100px; height:100px; background:yellow; border:10px solid black; display:table;"> <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/" /> <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#containing-block-details" /> <meta name="assert" content="If there is no such ancestor, the containing block is the initial containing block." /> <meta name="flags" content="" /> <body> </body> </html>