<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>CSS Test: Margin collapsing - negative margins adjoining positive margins</title> <link rel="author" title="Microsoft" href="http://www.microsoft.com/"> <link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <!-- 2012-08-14 --> <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins"> <link rel="match" href="reference/margin-collapse-003-ref.htm"> <meta name="flags" content=""> <meta name="assert" content="Negative margins deduct from the maximum of the adjoining positive margin."> <style type="text/css"> div div { height: 20px; width: 50px; } #div1 { background: blue; margin-bottom: 2in; } #div2 { background: orange; margin-top: -2in; } </style> </head> <body> <p>Test passes if there is no vertical space between the blue and orange stripes.</p> <div> <div id="div1"></div> <div id="div2"></div> </div> </body> </html>