absolute-non-replaced-max-height-003.xht (1948B)
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: Max-height on absolutely positioned, non-replaced elements, vertical centering</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/" /> <!-- 2012-08-31 --> 7 <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-height" /> 8 <link rel="match" href="absolute-non-replaced-max-height-003-ref.xht" /> 9 10 <meta name="assert" content="An absolutely positioned non-replaced element's padding box (which is the area painted by background-color of the element) will be vertically centered within its containing block only if both 'margin-top' and 'margin-bottom' have equal values and if 'top' and 'bottom' have equal values. An absolutely positioned non-replaced element's margin box will be vertically centered within its containing block only if 'top' and 'bottom' have equal values." /> 11 <style type="text/css"> 12 #div1 13 { 14 border: solid black; 15 height: 3in; 16 position: relative; 17 width: 3in; 18 } 19 div div 20 { 21 background: blue; 22 bottom: 0.5in; 23 height: 1in; 24 margin-bottom: auto; 25 margin-top: auto; 26 max-height: 0.5in; 27 position: absolute; 28 top: 0.5in; 29 width: 100%; 30 } 31 </style> 32 </head> 33 <body> 34 <p>Test passes if a blue rectangle is <strong>vertically centered</strong> in an hollow black square.</p> 35 <div id="div1"> 36 <div></div> 37 </div> 38 </body> 39 </html>