margin-collapse-016.xht (1831B)
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <title>CSS Test: Margin collapsing - top/bottom margins adjoining collapse through</title> 5 <link rel="author" title="Microsoft" href="http://www.microsoft.com/" /> 6 <link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-08-15 --> 7 <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins" /> 8 <link rel="match" href="margin-collapse-002-ref.xht" /> 9 10 <meta name="flags" content="ahem image" /> 11 <meta name="assert" content="When top and bottom margins are adjoining margins collapse through that element." /> 12 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" /> 13 <style type="text/css"> 14 div 15 { 16 font: 20px/1em Ahem; 17 width: 5em; 18 } 19 #div1 20 { 21 background: url('support/margin-collapse-2em-space.png'); 22 height: 4em; 23 } 24 #div2, #div4 25 { 26 background:green; 27 height: 1em; 28 } 29 #div3 30 { 31 background: red; 32 height: 0; 33 } 34 #div2, #div3 35 { 36 margin-bottom: 2em; 37 } 38 #div3, #div4 39 { 40 margin-top: 2em; 41 } 42 </style> 43 </head> 44 <body> 45 <p>Test passes if there is <strong>no red</strong>.</p> 46 <div id="div1"> 47 <div id="div2"></div> 48 <div id="div3"></div> 49 <div id="div4"></div> 50 </div> 51 </body> 52 </html>