margin-collapse-004.xht (1308B)
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 - negative margins deducted from zero</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/" /> <!-- 2012-08-14 --> 7 <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins" /> 8 <link rel="match" href="margin-collapse-004-ref.xht" /> 9 10 <meta name="assert" content="Negative margins are deducted from zero if no positive margins are adjoining." /> 11 <style type="text/css"> 12 div div 13 { 14 height: 20px; 15 } 16 #div1 17 { 18 background: blue; 19 margin-bottom: 0; 20 } 21 #div2 22 { 23 background: orange; 24 margin-top: -40px; 25 } 26 </style> 27 </head> 28 <body> 29 <p>Test passes if the orange bar is above the blue bar.</p> 30 <div> 31 <div id="div1"></div> 32 <div id="div2"></div> 33 </div> 34 </body> 35 </html>