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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/css/CSS2/positioning/absolute-non-replaced-height-003.xht | |
| parent | Initial commit. (diff) | |
| download | firefox-upstream.tar.xz firefox-upstream.zip | |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/CSS2/positioning/absolute-non-replaced-height-003.xht')
| -rw-r--r-- | testing/web-platform/tests/css/CSS2/positioning/absolute-non-replaced-height-003.xht | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/CSS2/positioning/absolute-non-replaced-height-003.xht b/testing/web-platform/tests/css/CSS2/positioning/absolute-non-replaced-height-003.xht new file mode 100644 index 0000000000..523409cd5f --- /dev/null +++ b/testing/web-platform/tests/css/CSS2/positioning/absolute-non-replaced-height-003.xht @@ -0,0 +1,66 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml"> + <head> + <title>CSS Test: Absolutely positioned, non-replaced elements, vertical centering</title> + <link rel="author" title="Microsoft" href="http://www.microsoft.com/" /> + <link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-08-31 --> + <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-height" /> + <link rel="match" href="absolute-non-replaced-height-003-ref.xht" /> + + <meta name="assert" content="An absolutely positioned non-replaced element's padding box (which is the area painted by background-color of the element) will be vertically centered within its containing block only if both 'margin-top' and 'margin-bottom' have equal values and if 'top' and 'bottom' have equal values. An absolutely positioned non-replaced element's margin box will be vertically centered within its containing block only if 'top' and 'bottom' have equal values." /> + <style type="text/css"> + #div1 + { + border: solid black; + height: 3in; + position: relative; + width: 3in; + } + div div + { + background: blue; + bottom: 0.5in; + height: 1in; + margin-bottom: auto; + margin-top: auto; + position: absolute; + top: 0.5in; + width: 100%; + } + + /* + + 0.5in : top + + + auto (solve): margin-top + + + 0 : border-top-width + + + 0 : padding-top + + + 1in : height + + + 0 : padding-bottom + + + 0 : border-bottom-width + + + auto (solve) : margin-bottom + + + 0.5in : bottom + ============= + 3.0in : height of containing block + + So, margin-bottom and margin-top must use 0.5in so that the equation gets balanced. + + */ + + + </style> + </head> + <body> + <p>Test passes if a blue rectangle is <strong>vertically centered</strong> in an hollow black square.</p> + <div id="div1"> + <div></div> + </div> + </body> +</html> |