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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: 'vertical-lr' and margin collapsing - absolute positioning and siblings</title> |
| |
| <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> |
| <link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#logical-direction-layout" title="7.4 Flow-Relative Mappings" /> |
| |
| <meta content="ahem image" name="flags" /> |
| <meta name="assert" content="This test checks that absolutely positioned boxes do not collapse margins with siblings in 'vertical-lr' writing-mode." /> |
| |
| <!-- |
| left static position for the div#abs-pos could be determined with margin collapse |
| or without margin collapse; so there are 2 possible rendered layouts for such code |
| 2015-01-18 |
| |
| Test adapted and modified from |
| http://test.csswg.org/suites/css2.1/nightly-unstable/html4/margin-collapse-012.htm |
| |
| " |
| The margin collapsing rules apply exactly with the block-start margin substituted for the top margin and the block-end margin substituted for the bottom margin. |
| " |
| --> |
| |
| <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" /> |
| <style type="text/css"><![CDATA[ |
| body |
| { |
| margin-left: 66px; |
| /* |
| The sole purpose of this rule is to increase noticeability |
| of test failure in Google Chrome 40+ |
| */ |
| } |
| |
| p |
| { |
| font: 16px/1.25 serif; /* computes to 16px/20px */ |
| } |
| |
| div#test |
| { |
| border: teal solid 1em; |
| font: 25px/1 Ahem; |
| height: 4em; /* computes to 100px */ |
| margin-bottom: 0.2em; /* computes to 5px */ |
| writing-mode: vertical-lr; |
| } |
| |
| div#wrapper |
| { |
| background-color: orange; |
| border-left: blue solid 1em; |
| width: 3em; |
| } |
| |
| div#wrapper > div |
| { |
| height: 4em; |
| margin-left: 1em; |
| } |
| |
| div#abs-pos |
| { |
| background-color: blue; |
| position: absolute; |
| top: 97px; |
| /* |
| 16px : p's margin-top |
| + |
| 20px : p's top-most line box height |
| + |
| 20px : p's bottom-most line box height |
| + |
| 16px : p's margin-bottom |
| + |
| 25px : div#test's border-top |
| ========== |
| 97px |
| */ |
| width: 1em; |
| } |
| |
| div.ref |
| { |
| border: teal solid 1em; |
| font: 25px/1 Ahem; |
| height: 4em; /* computes to 100px */ |
| margin-bottom: 0.2em; |
| width: 4em; |
| } |
| ]]></style> |
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| </head> |
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| <body> |
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| <p>Test passes if the top square has a layout<br />identical to one of the squares below it.</p> |
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| <div id="test"> |
| <div id="wrapper"> |
| <div id="widthless-static"></div> |
| <div id="abs-pos"></div> |
| </div> |
| </div> |
| |
| <div class="ref" id="ref1"><img src="support/swatch-blue.png" width="25" height="100" alt="Image download support must be enabled" /><img src="support/swatch-orange.png" width="25" height="100" alt="Image download support must be enabled" /><img src="support/swatch-orange.png" width="25" height="100" alt="Image download support must be enabled" /><img src="support/swatch-blue.png" width="25" height="100" alt="Image download support must be enabled" /></div> |
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| <div class="ref" id="ref2"><img src="support/swatch-blue.png" width="25" height="100" alt="Image download support must be enabled" /><img src="support/swatch-orange.png" width="25" height="100" alt="Image download support must be enabled" /><img src="support/swatch-blue.png" width="25" height="100" alt="Image download support must be enabled" /><img src="support/swatch-orange.png" width="25" height="100" alt="Image download support must be enabled" /></div> |
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| </body> |
| </html> |
