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| 1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/x
html1/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 - 'd
irection: ltr' and 'top', 'height' and 'bottom' are not 'auto' (overconstrained)
</title> |
| 8 |
| 9 <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserB
ugsSection/css21testsuite/" /> |
| 10 <link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#vertical-layo
ut" 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-replace
d-width" title="10.3.7 Absolutely positioned, non-replaced elements" /> |
| 12 <link rel="match" href="abs-pos-non-replaced-vrl-006-ref.xht" /> |
| 13 |
| 14 <meta name="flags" content="ahem image" /> |
| 15 <meta name="assert" content="When 'direction' is 'ltr' and 'top', 'height' and
'bottom' are not 'auto' and if the values are overconstrained, then ignore 'bot
tom' and solve for 'bottom'." /> |
| 16 |
| 17 <style type="text/css"><![CDATA[ |
| 18 html |
| 19 { |
| 20 -webkit-writing-mode: vertical-rl; |
| 21 } |
| 22 |
| 23 div#containing-block |
| 24 { |
| 25 background: red url("support/bg-red-3col-3row-320x320.png"); |
| 26 color: transparent; |
| 27 direction: ltr; |
| 28 font: 80px/1 Ahem; |
| 29 height: 320px; |
| 30 position: relative; |
| 31 width: 320px; |
| 32 } |
| 33 |
| 34 div#containing-block > span |
| 35 { |
| 36 background-color: red; |
| 37 bottom: 2em; |
| 38 color: green; |
| 39 height: 1em; |
| 40 margin-bottom: 0em; |
| 41 margin-top: 0em; |
| 42 position: absolute; |
| 43 top: 2em; |
| 44 } |
| 45 |
| 46 /* |
| 47 " |
| 48 Layout calculation rules (such as those in CSS2.1, Section 10.3) that apply to t
he horizontal dimension in horizontal writing modes instead apply to the vertica
l dimension in vertical writing modes. |
| 49 " |
| 50 7.1 Principles of Layout in Vertical Writing Modes |
| 51 http://www.w3.org/TR/css-writing-modes-3/#vertical-layout |
| 52 |
| 53 So here, *-top and *-bottom properties are input into the §10.3.7 algorithms whe
re *-top properties refer to *-left properties in the layout rules and where *-b
ottom properties refer to *-right properties in the layout rules. |
| 54 |
| 55 " |
| 56 If the values are over-constrained, ignore the value for 'left' (in case the 'di
rection' property of the containing block is 'rtl') or 'right' (in case 'directi
on' is 'ltr') and solve for that value. |
| 57 " |
| 58 |
| 59 'top' + 'margin-top' + 'border-top-width' + 'padding-top' + 'height' + 'padding-
bottom' + 'border-bottom-width' + 'margin-bottom' + 'bottom' = height of contain
ing block |
| 60 |
| 61 So: |
| 62 |
| 63 160px : top |
| 64 + |
| 65 0px : margin-top |
| 66 + |
| 67 0px : border-top-width |
| 68 + |
| 69 0px : padding-top |
| 70 + |
| 71 80px : height |
| 72 + |
| 73 0px : padding-bottom |
| 74 + |
| 75 0px : border-bottom-width |
| 76 + |
| 77 0px : margin-bottom |
| 78 + |
| 79 160px : bottom |
| 80 ===================== |
| 81 320px : height of containing block |
| 82 |
| 83 gives us: |
| 84 |
| 85 160px : top |
| 86 + |
| 87 0px : margin-top |
| 88 + |
| 89 0px : border-top-width |
| 90 + |
| 91 0px : padding-top |
| 92 + |
| 93 80px : height |
| 94 + |
| 95 0px : padding-bottom |
| 96 + |
| 97 0px : border-bottom-width |
| 98 + |
| 99 0px : margin-bottom |
| 100 + |
| 101 (solve) : bottom |
| 102 ===================== |
| 103 320px : height of containing block |
| 104 |
| 105 And so computed bottom value must be 80px . |
| 106 */ |
| 107 |
| 108 ]]></style> |
| 109 |
| 110 </head> |
| 111 |
| 112 <body> |
| 113 |
| 114 <p><img src="support/pass-cdts-abs-pos-non-replaced.png" width="246" height="3
6" alt="Image download support must be enabled" /></p> |
| 115 |
| 116 <div id="containing-block">1 2 34<span>X</span></div> |
| 117 |
| 118 </body> |
| 119 </html> |
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Chromium Code Reviews
Issue 1157103007:
update-w3c-deps import using blink b712b6ce0eb599d90d890aa609f596c7852fb824 (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master