<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html lang="en"> <head> <title>CSS Test: Margin Collapsing: absolutely positioned</title> <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"> <link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <!-- 2012-08-15 --> <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/box/block/margin-collapse/002.html" type="text/html"> <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins"> <link rel="match" href="reference/ref-filled-green-100px-square.htm"> <style type="text/css"> div {font-size: 20px;} div.test { background: green; position: absolute; } div.test div { background: red; margin: 5em 2.5em; } div.control { height: 5em; width: 5em; background: red; position: absolute; } </style> </head> <body> <p>Test passes if there is a filled green square and <strong>no red</strong>.</p> <div class="control"></div> <div class="test"> <div></div> </div> </body> </html>