abs-pos-non-replaced-vrl-110.xht (3718B)
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: rtl' and 'left', 'width' and 'right' are '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-vrl-004-ref.xht" /> 13 14 <meta name="flags" content="ahem image" /> 15 <meta name="assert" content="When 'direction' is 'rtl' and 'left', 'width' and 'right' are 'auto' and 'writing-mode' is 'vertical-rl', then set 'right' to the static position, the width is based on the content and then solve for 'left'." /> 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-3col-2row-320x320.png"); 22 color: transparent; 23 direction: rtl; 24 font: 80px/1 Ahem; 25 height: 320px; 26 position: relative; 27 width: 320px; 28 writing-mode: vertical-rl; 29 } 30 31 div#containing-block > span 32 { 33 background-color: red; 34 color: green; 35 left: auto; 36 position: absolute; 37 right: auto; 38 width: auto; 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, *right and *left properties are input into the §10.6.4 algorithms where *right properties refer to *top properties in the layout rules and where *left properties refer to *bottom properties in the layout rules. 49 50 " 51 If all three of 'top', 'height', and 'bottom' are auto, set 'top' to the static position and apply rule number three below. 52 53 3. 'height' and 'bottom' are 'auto' and 'top' is not 'auto', then the height is based on the content per 10.6.7, set 'auto' values for 'margin-top' and 'margin-bottom' to 0, and solve for 'bottom' 54 " 55 56 'left' + 'margin-left' + 'border-left-width' + 'padding-left' + 'width' + 'padding-right' + 'border-right-width' + 'margin-right' + 'right' = width of containing block 57 58 So: 59 60 80px : right: auto: set to static position 61 + 62 0px : margin-right 63 + 64 0px : border-right-width 65 + 66 0px : padding-right 67 + 68 (based on the content) : width: auto 69 + 70 0px : padding-left 71 + 72 0px : border-left-width 73 + 74 0px : margin-left 75 + 76 (solve) : left: auto 77 ===================== 78 320px : width of containing block 79 80 gives us: 81 82 80px : right: auto: set to static position 83 + 84 0px : margin-right 85 + 86 0px : border-right-width 87 + 88 0px : padding-right 89 + 90 80px : (based on the content) : width: auto 91 + 92 0px : padding-left 93 + 94 0px : border-left-width 95 + 96 0px : margin-left 97 + 98 (solve) : left: auto 99 ===================== 100 320px : width of containing block 101 102 And so computed left value must be 160px . 103 */ 104 105 ]]></style> 106 107 </head> 108 109 <body> 110 111 <p><img src="support/pass-cdts-abs-pos-non-replaced.png" width="246" height="36" alt="Image download support must be enabled" /></p> 112 113 <div id="containing-block">1 2 34<span>X</span></div> 114 115 </body> 116 </html>