relpos-calcs-003.xht (1848B)
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: Relative Positioning - Computing auto left = -right</title> 5 <link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact"/> 6 <link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-09-25 --> 7 <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#relative-positioning" /> 8 <link rel="match" href="relpos-calcs-001-ref.xht" /> 9 10 <meta name="assert" content="For a relatively positioned element, if 'left' 11 is 'auto', its used value is minus the value of 'right'." /> 12 <style type="text/css"> 13 div { 14 height: 120px; 15 width: 120px; 16 } 17 .container { 18 margin-left: -60px; 19 } 20 .outer { 21 background: red; 22 position: relative; 23 right: -50%; 24 /* 25 div.outer's used right value is -60px 26 div.outer's used left value is 60px 27 div.outer's computed right value is -50% 28 but 29 div.outer's computed left value is auto and not 50%! 30 */ 31 32 } 33 .inner { 34 background: green; 35 position: relative; 36 left: inherit; /* using inheritance to test computed vs. used */ 37 } 38 .control { 39 background: red; 40 margin-bottom: -120px; 41 } 42 </style> 43 </head> 44 <body> 45 <p>Test passes if there is a filled green square and <strong>no red</strong>.</p> 46 <div class="control"></div> 47 <div class="container"> 48 <div class="outer"> 49 <div class="inner"></div> 50 </div> 51 </div> 52 </body> 53 </html>