block-non-replaced-width-008.xht (1911B)
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 2 3 <html xmlns="http://www.w3.org/1999/xhtml"> 4 5 <head> 6 7 <title>CSS Test: Solving 'width: auto' of a block-level non-replaced element in normal flow with one other property set to an 'auto' value</title> 8 9 <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> 10 <link rel="help" title="10.3.3 Block-level, non-replaced elements in normal flow" href="http://www.w3.org/TR/CSS21/visudet.html#blockwidth" /> 11 <meta content="If 'width' is set to 'auto', any other 'auto' values become '0' and the determination of 'width' proceeds from the following equality: 'margin-left' + 'border-left-width' + 'padding-left' + 'width' + 'padding-right' + 'border-right-width' + 'margin-right' = width of containing block" name="assert" /> 12 13 <style type="text/css"><![CDATA[ 14 div {height: 200px;} 15 16 div#containing-block 17 { 18 border-right: red solid 200px; 19 padding-right: 200px; 20 width: 0px; 21 } 22 23 div#child 24 { 25 border-right: green solid 200px; 26 margin-right: -400px; 27 } 28 29 /* 30 Calculation of used width for div#child: 31 32 margin-left : 0px (or auto) 33 + border-left-width : 0px 34 + padding-left : 0px 35 + width : auto 36 + padding-right : 0px 37 + border-right-width : 200px 38 + margin-right : -400px 39 ==================================== 40 width of containing block : 0px 41 42 Therefore 'width: auto' must be resolved as 'width: 200px'. 43 Therefore div#child's green border-right should overlap perfectly 44 div#containing-block's red border-right. 45 */ 46 ]]></style> 47 48 </head> 49 50 <body> 51 52 <p>Test passes if there is a filled green square and <strong>no red</strong>.</p> 53 54 <div id="containing-block"> 55 <div id="child"></div> 56 </div> 57 58 </body> 59 </html>