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MozReview-Commit-ID: DfvN9mAFYhI --HG-- rename : testing/web-platform/tests/conformance-checkers/html-svg/animate-elem-77-t-novalid.html => testing/web-platform/tests/conformance-checkers/html-svg/animate-elem-77-t-isvalid.html rename : testing/web-platform/tests/conformance-checkers/html-svg/linking-a-10-f-novalid.html => testing/web-platform/tests/conformance-checkers/html-svg/linking-a-10-f-isvalid.html rename : testing/web-platform/tests/conformance-checkers/html/elements/picture/srcset-microsyntax-leading-dot-x-novalid.html => testing/web-platform/tests/conformance-checkers/html/elements/picture/srcset-microsyntax-leading-dot-x-valid.html rename : testing/web-platform/tests/content-security-policy/_unapproved/script-nonces-hidden.html.headers => testing/web-platform/tests/content-security-policy/nonce-hiding/script-nonces-hidden.tentative.html.headers rename : testing/web-platform/tests/content-security-policy/_unapproved/svgscript-nonces-hidden.html.headers => testing/web-platform/tests/content-security-policy/nonce-hiding/svgscript-nonces-hidden.tentative.html.headers rename : testing/web-platform/tests/html/semantics/interactive-elements/context-menus/contextmenu-event-manual.htm => testing/web-platform/tests/html/webappapis/scripting/events/contextmenu-event-manual.htm
59 lines
2.4 KiB
HTML
59 lines
2.4 KiB
HTML
<!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: Margin with a value of 'auto'</title>
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<link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
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<link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-08-13 -->
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<link rel="help" href="http://www.w3.org/TR/CSS21/box.html#propdef-margin" />
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<link rel="help" href="http://www.w3.org/TR/CSS21/box.html#margin-properties" />
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<link rel="match" href="margin-005-ref.xht" />
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<meta name="flags" content="" />
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<meta name="assert" content="The 'margin' property with a value of 'auto' correctly sizes the margin. In normal flow, 'margin-top: auto' and 'margin-bottom: auto' for block-level, non-replaced elements are resolved as 0. In normal flow, 'margin-left: auto' and 'margin-right: auto' for block-level, non-replaced elements are resolved according to the constraint equation for the width of containing block: 'margin-left' + 'border-left-width' + 'padding-left' + 'width' + 'padding-right' + 'border-right-width' + 'margin-right' = width of containing block" />
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<style type="text/css">
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#wrapper
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{
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position: relative;
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}
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#div1, #div2
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{
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border: 10px solid green;
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}
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#div1, #reference
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{
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left: 0;
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position: absolute;
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top: 0;
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}
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/*
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In this test, #div1, which is absolutely positioned, is
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#div2's containing block. In which case, the width of #div1 is
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shrink-to-fit to the width of #div2 plus its borders.
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http://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-width
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*/
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#div2
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{
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height: 1in;
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margin: auto;
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width: 3in;
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}
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#reference
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{
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border: 20px solid red;
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height: 96px;
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width: 288px;
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}
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</style>
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</head>
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<body>
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<p>Test passes if there is <strong>no red</strong>.</p>
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<div id="wrapper">
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<div id="reference"></div>
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<div id="div1">
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<div id="div2"></div>
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</div>
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</div>
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</body>
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</html>
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