abs-pos-non-replaced-vlr-017.xht (2859B)
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 'left' and 'width' are 'auto' and 'right' is 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-width" title="10.3.7 Absolutely positioned, non-replaced elements" /> 12 <link rel="match" href="abs-pos-non-replaced-vlr-009-ref.xht" /> 13 14 <meta name="flags" content="ahem image" /> 15 <meta name="assert" content="When 'direction' is 'ltr' and 'left' and 'width' are 'auto' and 'right' is not 'auto', then the width becomes shrink-to-fit 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-2col-2row-320x320.png"); 22 color: transparent; 23 direction: ltr; 24 font: 80px/1 Ahem; 25 height: 320px; 26 position: relative; 27 width: 320px; 28 } 29 30 div#containing-block > span 31 { 32 background-color: red; 33 color: green; 34 left: auto; 35 position: absolute; 36 right: 2em; 37 width: auto; 38 writing-mode: vertical-lr; 39 } 40 41 /* 42 " 43 1. 'left' and 'width' are 'auto' and 'right' is not 'auto', then the width is shrink-to-fit. Then solve for 'left' 44 " 45 46 'left' + 'margin-left' + 'border-left-width' + 'padding-left' + 'width' + 'padding-right' + 'border-right-width' + 'margin-right' + 'right' = width of containing block 47 48 So: 49 50 (solve) : left: auto 51 + 52 0px : margin-left 53 + 54 0px : border-left-width 55 + 56 0px : padding-left 57 + 58 (shrink-to-fit) : width: auto 59 + 60 0px : padding-right 61 + 62 0px : border-right-width 63 + 64 0px : margin-right 65 + 66 160px : right 67 ===================== 68 320px : width of containing block 69 70 gives us: 71 72 (solve) : left: auto 73 + 74 0px : margin-left 75 + 76 0px : border-left-width 77 + 78 0px : padding-left 79 + 80 80px : (shrink-to-fit) : width: auto 81 + 82 0px : padding-right 83 + 84 0px : border-right-width 85 + 86 0px : margin-right 87 + 88 160px : right 89 ===================== 90 320px : width of containing block 91 92 And so computed left value must be 80px . 93 */ 94 95 ]]></style> 96 97 </head> 98 99 <body> 100 101 <p><img src="support/pass-cdts-abs-pos-non-replaced.png" width="246" height="36" alt="Image download support must be enabled" /></p> 102 103 <div id="containing-block">1 2 34<span>X</span></div> 104 105 </body> 106 </html>