containing-block-007.xht (1357B)
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: Initial containing block for fixed positioned elements</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/" /> <!-- 2012-03-07 --> 7 <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#containing-block-details" /> 8 <link rel="match" href="containing-block-007-ref.xht" /> 9 10 <meta name="assert" content="The containing block is established by the viewport when an element uses fixed positioning." /> 11 <style type="text/css"> 12 #div1 13 { 14 position: relative; 15 bottom: 0; 16 } 17 div div 18 { 19 background: blue; 20 height: 1in; 21 position: fixed; 22 right: 0; 23 top: 0; 24 width: 1in; 25 } 26 </style> 27 </head> 28 <body> 29 <p>Test passes if there is a filled blue square in the upper-right corner of the page.</p> 30 <div id="div1"> 31 <div></div> 32 </div> 33 </body> 34 </html>