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136 lines
3.4 KiB
HTML
136 lines
3.4 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: table-layout: fixed - cell in the first row with specified width</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/CSS21/tables.html#fixed-table-layout" />
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<link rel="bookmark" href="http://lists.w3.org/Archives/Public/www-style/2011Oct/0502.html" title="[css21] Section 17.5.2.1 should be clarified" />
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<link rel="match" href="fixed-table-layout-003f04-ref.xht" />
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<meta name="flags" content="" />
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<meta name="assert" content="A cell in the first row with specified non-auto 'width' sets the width for its column in the absence of a column element with specified non-auto width. This test checks the 'border-collapse: collapse' model with zero horizontal cell padding and with one non-zero horizontal cell border." />
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<style type="text/css"><![CDATA[
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div, table {font: 1.25em/1.2 serif;}
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table
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{
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border-collapse: collapse;
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table-layout: fixed;
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width: 300px;
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}
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td {padding: 0px;}
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td#tested-cell
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{
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background-color: blue;
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border-left: orange solid 0px;
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border-right: orange solid 120px;
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color: blue;
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width: 80px;
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}
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div#reference
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{
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background-color: black;
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color: black;
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margin-left: 80px;
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/*
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"
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In the fixed table layout algorithm, the width of each column is determined as follows:
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(...) a cell in the first row with a value other than 'auto' for the 'width' property determines the width for that column. (...)
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Any remaining columns equally divide the remaining horizontal table space (minus borders or cell spacing).
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"
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Section 17.5.2.1 Fixed table layout
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http://www.w3.org/TR/CSS21/tables.html#fixed-table-layout
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Middle column width calculations
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--------------------------------
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80px : width of cell in the middle column
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+
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60px : half of border-right since such border must be split with cell in 3rd column
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=======
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140px : width of the middle column
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So,
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300px : table set width
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-
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140px : width of the middle column
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=======
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160px
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So, each of the 2 remaining columns must be
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half of such extra horizontal table space,
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which is 160px divided by 2 == 80px.
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1st column width calculations
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-----------------------------
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(solve) : width of cell in 1st column
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=======
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80px : width of 1st column
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So, the width of the cell in first column must be exactly 80px.
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3rd column width calculations
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-----------------------------
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60px : border-left of cell in 3rd column
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+
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(solve) : width of cell in 3rd column
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========
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80px : width of 3rd column
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So, the width of the cell in 3rd column must be exactly 20px.
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Finally, the precise horizontal point where the border-right of cell
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in first column begins to be drawn, painted is:
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80px : width of cell in 1st column
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Therefore the margin-left: 80px value of the div#reference.
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*/
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width: 200px;
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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 the blue stripe and orange stripe are as a whole <strong>exactly as wide as</strong> the black stripe.</p>
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<table>
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<col />
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<col />
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<col />
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<tr>
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<td></td>
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<td id="tested-cell">F04</td>
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<td></td>
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</tr>
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</table>
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<div id="reference">200px wide</div>
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</body>
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</html>
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