abs-pos-non-replaced-vlr-167.xht (3059B)
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 Writing Modes Test: absolutely positioned non-replaced element - 'direction: ltr' and 'right' is 'auto', 'width' and 'left' are not 'auto'</title> 8 9 <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> 10 <link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#vertical-layout" title="7.1 Principles of Layout in Vertical Writing Modes" /> 11 <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-height" title="10.6.4 Absolutely positioned, non-replaced elements" /> 12 <link rel="match" href="abs-pos-non-replaced-vlr-003-ref.xht" /> 13 14 <meta name="flags" content="ahem image" /> 15 <meta name="assert" content="When 'direction' is 'ltr' and 'right' is 'auto', 'width' and 'left' are not 'auto' and 'writing-mode' is 'vertical-lr', then solve for 'right'." /> 16 17 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" /> 18 <style type="text/css"><![CDATA[ 19 div#containing-block 20 { 21 background: red url("support/bg-red-2col-3row-320x320.png"); 22 color: transparent; 23 direction: ltr; 24 font: 80px/1 Ahem; 25 height: 320px; 26 position: relative; 27 width: 320px; 28 writing-mode: vertical-lr; 29 } 30 31 div#containing-block > span 32 { 33 background-color: green; 34 height: 1em; 35 left: 1em; 36 position: absolute; 37 right: auto; 38 width: 1em; 39 } 40 41 /* 42 " 43 Layout calculation rules (such as those in CSS2.1, Section 10.3) that apply to the horizontal dimension in horizontal writing modes instead apply to the vertical dimension in vertical writing modes. 44 " 45 7.1 Principles of Layout in Vertical Writing Modes 46 http://www.w3.org/TR/css-writing-modes-3/#vertical-layout 47 48 So here, *left properties and *right properties are input into the §10.6.4 algorithms where *left properties refer to *top properties in the layout rules and where *right properties refer to *bottom properties in the layout rules. 49 50 " 51 4. 'top' is 'auto', 'height' and 'bottom' are not 'auto', then set 'auto' values for 'margin-top' and 'margin-bottom' to 0, and solve for 'top'" 52 53 'left' + 'margin-left' + 'border-left-width' + 'padding-left' + 'width' + 'padding-right' + 'border-right-width' + 'margin-right' + 'right' = width of containing block 54 55 So: 56 57 (solve) : right: auto 58 + 59 0px : margin-right 60 + 61 0px : border-right-width 62 + 63 0px : padding-right 64 + 65 80px : width 66 + 67 0px : padding-left 68 + 69 0px : border-left-width 70 + 71 0px : margin-left 72 + 73 80px : left 74 ===================== 75 320px : width of containing block 76 77 And so computed right value must be 160px . 78 */ 79 80 ]]></style> 81 82 </head> 83 84 <body> 85 86 <p><img src="support/pass-cdts-abs-pos-non-replaced.png" width="246" height="36" alt="Image download support must be enabled" /></p> 87 88 <div id="containing-block">1 2 34<span></span></div> 89 90 </body> 91 </html>