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96 lines
No EOL
2.1 KiB
HTML
96 lines
No EOL
2.1 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>CSS Multi-column Layout Test: nested multicolumn and nested margin-top</title>
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<link rel="author" title="Opera Software ASA" href="http://www.opera.com/">
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<link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <!-- 2013-08-14 -->
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<link rel="help" href="http://www.w3.org/TR/css3-multicol/#the-multi-column-model" title="2. The multi-column model">
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<link rel="match" href="reference/multicol-nested-margin-003-ref.htm">
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<meta name="flags" content="ahem">
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<meta name="assert" content="This test checks that a top margin set on the first child element of a nested multicol element will not collapse with the margins of the multicol element.">
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<style type="text/css">
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body > div
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{
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font: 1.25em/1 Ahem;
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margin: 1em;
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width: 41em;
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/*
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This test requires a viewport width of 860px
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*/
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}
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div
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{
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background-color: yellow;
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color: black;
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margin: 1em 1em 0;
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orphans: 1;
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widows: 1;
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column-count: 3;
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column-gap: 1em;
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}
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/*
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N == 3;
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43em - 2em (horizontal margins) == available-width
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W == max(0, (available-width - ((N - 1) * column-gap)) / N);
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W == max(0, (41em - ((3 - 1) * 1em)) / 3);
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W == max(0, (41em - (2 * 1em)) / 3);
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W == max(0, (41em - 2em) / 3);
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W == max(0, 39em / 3);
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W == max(0, 13em);
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W == 13em;
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13em : width of each outer column box
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-
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2em : horizontal margin of each div inside
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=======
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11em : width of each inner multi-column elements
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N == 3;
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W == max(0, (available-width - ((N - 1) * column-gap)) / N);
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W == max(0, (11em - ((3 - 1) * 1em)) / 3);
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W == max(0, (11em - (2 * 1em)) / 3);
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W == max(0, (11em - 2em) / 3);
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W == max(0, 9em / 3);
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W == max(0, 3em);
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W == 3em;
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*/
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div div:nth-child(2) {color: pink;}
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div div:nth-child(3) {color: blue;}
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</style>
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</head>
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<body>
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<div>
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<div>
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bl ac
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bl ac
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bl ac
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bl ac
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</div>
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<div>
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Pi nk
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Pi nk
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Pi nk
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Pi nk
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</div>
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<div>
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bl ue
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bl ue
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bl ue
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bl ue
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</div>
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</div>
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</body>
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</html> |