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| <html xmlns="http://www.w3.org/1999/xhtml"> |
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| <head> |
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| <title>CSS Writing Modes Test: absolutely positioned non-replaced element - 'direction: ltr' and 'top', 'bottom' and 'height' are not 'auto' (overconstrained)</title> |
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| <link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> |
| <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" /> |
| <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" /> |
| <link rel="match" href="abs-pos-non-replaced-vrl-002-ref.xht" /> |
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| <meta name="flags" content="ahem image" /> |
| <meta name="assert" content="When 'direction' is 'ltr' and 'top', 'bottom' and 'height' are not 'auto' and if the values are over-constrained, then ignore the value for 'bottom' and solve for that value." /> |
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| <style type="text/css"><![CDATA[ |
| div#containing-block |
| { |
| background: red url("support/bg-red-3col-3row-320x320.png"); |
| color: transparent; |
| direction: ltr; |
| font: 80px/1 Ahem; |
| height: 320px; |
| position: relative; |
| width: 320px; |
| } |
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| div#containing-block > span |
| { |
| background-color: red; |
| bottom: 2em; |
| color: green; |
| height: 1em; |
| position: absolute; |
| top: 2em; |
| writing-mode: vertical-rl; |
| } |
| |
| /* |
| " |
| If none of the three are 'auto': If both 'margin-top' and 'margin-bottom' are 'auto', solve the equation under the extra constraint that the two margins get equal values. If one of 'margin-top' or 'margin-bottom' is 'auto', solve the equation for that value. If the values are over-constrained, ignore the value for 'bottom' and solve for that value. |
| " |
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| 'top' + 'margin-top' + 'border-top-width' + 'padding-top' + 'height' + 'padding-bottom' + 'border-bottom-width' + 'margin-bottom' + 'bottom' = height of containing block |
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| So: |
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| 160px : top |
| + |
| 0px : margin-top |
| + |
| 0px : border-top-width |
| + |
| 0px : padding-top |
| + |
| 80px : height |
| + |
| 0px : padding-bottom |
| + |
| 0px : border-bottom-width |
| + |
| 0px : margin-bottom |
| + |
| 160px : bottom |
| ===================== |
| 320px : height of containing block |
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| gives us |
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| 160px : top |
| + |
| 0px : margin-top |
| + |
| 0px : border-top-width |
| + |
| 0px : padding-top |
| + |
| 80px : height |
| + |
| 0px : padding-bottom |
| + |
| 0px : border-bottom-width |
| + |
| 0px : margin-bottom |
| + |
| (solve) : bottom |
| ===================== |
| 320px : height of containing block |
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| And so computed bottom value must be 80px . |
| */ |
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| ]]></style> |
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| </head> |
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| <body> |
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| <p><img src="support/pass-cdts-abs-pos-non-replaced.png" width="246" height="36" alt="Image download support must be enabled" /></p> |
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| <div id="containing-block">1 2 34<span>X</span></div> |
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| </body> |
| </html> |