105 lines
3.3 KiB
HTML
105 lines
3.3 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 Writing Modes Test: position absolute and 'vertical-rl' - 'left: auto', 'width: auto' and 'right: auto' with 'direction: ltr' in initial containing block</title>
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<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
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<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#vertical-layout" title="7.1 Principles of Layout in Vertical Writing Modes" />
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<link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
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<meta content="This test checks that when the initial containing block's writing-mode is 'horizontal-tb' and its 'direction' is 'ltr', then an absolutely positioned box (with 'left: auto', 'width: auto' and 'right: auto') whose containing block is the initial containing block must set 'left' to the static position. Whether such absolutely positioned box's 'writing-mode' is vertical or not is irrelevant." name="assert" />
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<style type="text/css"><![CDATA[
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html
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{
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direction: ltr;
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}
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div#green-overlapping-test
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{
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border-left: green solid 25px;
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border-right: green solid 75px;
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height: 100px;
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left: auto;
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position: absolute;
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right: auto;
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width: auto;
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writing-mode: vertical-rl;
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}
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/*
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"
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If all three of 'left', 'width', and 'right' are 'auto': First set any 'auto' values for 'margin-left' and 'margin-right' to 0. Then, if the 'direction' property of the element establishing the static-position containing block is 'ltr' set 'left' to the static position and apply rule number three below; otherwise, set 'right' to the static position and apply rule number one below.
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(...)
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3. 'width' and 'right' are 'auto' and 'left' is not 'auto', then the width is shrink-to-fit . Then solve for 'right'
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"
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10.3.7 Absolutely positioned, non-replaced elements
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http://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-width
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So:
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auto : left
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+
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0px : margin-left
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+
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25px : border-left-width
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+
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0px : padding-left
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+
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auto : width
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+
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0px : padding-right
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+
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75px : border-right-width
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+
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0px : margin-right
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+
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auto : right
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====================
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: width of containing block (width of Initial Containing Block)
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becomes
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8px : left
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+
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0px : margin-left
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+
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25px : border-left-width
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+
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0px : padding-left
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+
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0px : width (shrink-to-fit)
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+
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0px : padding-right
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+
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75px : border-right-width
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+
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0px : margin-right
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+
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solve : right
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====================
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: width of containing block (width of Initial Containing Block)
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*/
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div#red-overlapped-reference
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{
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background-color: red;
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height: 100px;
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width: 100px;
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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 a filled green square and <strong>no red</strong>.</p>
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<div id="green-overlapping-test"></div>
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<div id="red-overlapped-reference"></div>
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</body>
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</html>
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