| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> |
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| <html xmlns="http://www.w3.org/1999/xhtml"> |
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| <head> |
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| <title>CSS Test: inherit applied on margin set with em</title> |
| |
| <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> |
| <link rel="help" title="4.3.2 Length" href="http://www.w3.org/TR/CSS21/syndata.html#length-units" /> |
| <link rel="help" title="6.2.1 The 'inherit' value" href="http://www.w3.org/TR/CSS21/cascade.html#value-def-inherit" /> |
| <link rel="help" href="http://www.w3.org/TR/css-cascade-3/#inherit" /> |
| <link rel="help" href="http://www.w3.org/TR/css-cascade-4/#inherit" /> |
| <link rel="help" title="8.3 Margin properties" href="http://www.w3.org/TR/CSS21/box.html#margin-properties" /> |
| <link rel="match" href="margin-em-inherit-001-ref.xht" /> |
| |
| <meta content="The 'em' unit is equal to the computed value of the 'font-size' property of the element on which it is used. When inherit keyword is used, the property takes the same computed value - a length value in this testcase - as the property for the element's parent." name="assert" /> |
| <meta content="image" name="flags" /> |
| |
| <style type="text/css"><![CDATA[ |
| body {margin: 8px;} |
| |
| p |
| { |
| font: 1em/1.25 serif; |
| margin: 1em 0em; |
| } |
| |
| div#grand-parent {width: 600px;} |
| |
| div#parent |
| { |
| background-color: green; |
| border: white solid 6px; |
| /* |
| Such border prevents margin collapsing between |
| #parent's vertical margins and #child's vertical margins |
| */ |
| font-size: 28px; |
| margin: 2em 3em 1em 4em; /* 56px 84px 28px 112px */ |
| } |
| |
| div#child |
| { |
| font-size: 40px; |
| margin: inherit; |
| /* |
| What is inherited is a computed length value: so |
| it is 56px 84px 28px 112px and not 80px 120px 40px 160px |
| */ |
| } |
| |
| div#abs-pos-overlapping-green |
| { |
| left: 238px; |
| position: absolute; |
| top: 174px; |
| } |
| |
| /* |
| 8px (body's margin-left) |
| + 112px (#parent's margin-left) |
| + 6px (#parent's border-left) |
| + 112px (#child's margin-left) |
| ================== |
| 238px |
| */ |
| |
| /* |
| 16px (max(8px, 16px): body's margin-top collapses with p's margin-top) |
| + 20px (first line) |
| + 20px (second line) |
| + 56px (max(16px, 56px): p's margin-bottom collapses with #parent's margin-top) |
| + 6px (#parent's border-top) |
| + 56px (#child's margin-top) |
| ================== |
| 174px |
| */ |
| ]]></style> |
| |
| </head> |
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| <body> |
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| <p>Test passes if there is a filled green<br /> |
| rectangle and if there is no red.</p> |
| |
| <div id="grand-parent"> |
| <div id="parent"> |
| <div id="child"><img src="support/100x100-red.png" alt="Image download support must be enabled" /></div> |
| </div> |
| </div> |
| |
| <div id="abs-pos-overlapping-green"><img src="support/swatch-green.png" width="100" height="100" alt="Image download support must be enabled" /></div> |
| |
| </body> |
| </html> |
