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Diffstat (limited to 'testing/web-platform/tests/css/CSS2/positioning/absolute-non-replaced-height-011.xht')
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diff --git a/testing/web-platform/tests/css/CSS2/positioning/absolute-non-replaced-height-011.xht b/testing/web-platform/tests/css/CSS2/positioning/absolute-non-replaced-height-011.xht new file mode 100644 index 0000000000..fa9a0db666 --- /dev/null +++ b/testing/web-platform/tests/css/CSS2/positioning/absolute-non-replaced-height-011.xht @@ -0,0 +1,93 @@ +<!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, 'height' based on 'top' and 'bottom' positions</title> + <link rel="author" title="Microsoft" href="http://www.microsoft.com/" /> + <link rel="reviewer" title="GĂ©rard 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="The 'auto' values on 'margin-top', 'margin-bottom' are set to '0' and the 'height' is the remaining space between the 'top' and 'bottom' positions, when 'height' is 'auto' and 'top' and 'bottom' are both not 'auto'." /> + <style type="text/css"> + #div1 + { + border: solid black; + height: 3in; + position: relative; + width: 3in; + } + div div + { + background: blue; + bottom: 1in; + height: auto; + margin-bottom: auto; + margin-top: auto; + position: absolute; + top: 1in; + width: 100%; + } + + /* + + 1in : top + + + auto (to solve): margin-top + + + 0 : border-top-width + + + 0 : padding-top + + + auto (to solve) : height + + + 0 : padding-bottom + + + 0 : border-bottom-width + + + auto (to solve): margin-bottom + + + 1in : bottom + ============= + 3in : height of containing block + + + " + 'height' is 'auto', 'top' and 'bottom' are not 'auto', + then 'auto' values for 'margin-top' and 'margin-bottom' are set to 0 + and solve for 'height' + " + + so this brings: + + 1in : top + + + 0 (set): margin-top + + + 0 : border-top-width + + + 0 : padding-top + + + auto (to solve) : height + + + 0 : padding-bottom + + + 0 : border-bottom-width + + + 0 (set): margin-bottom + + + 1in : bottom + ============= + 3in : height of containing block + + So, height must use 1in in order to balance the equation + + */ + </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> |