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<!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 Writing Modes Test: 'vertical-rl' and margin collapsing - absolute positioning and siblings</title>
<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#logical-direction-layout" title="7.4 Flow-Relative Mappings" />
<meta content="ahem image" name="flags" />
<meta name="assert" content="This test checks that absolutely positioned boxes do not collapse margins with siblings in 'vertical-rl' writing-mode." />
<!--
left static position for the div#abs-pos could be determined with margin collapse
or without margin collapse; so there are 2 possible rendered layouts for such code
2015-01-18
Test adapted from
http://test.csswg.org/suites/css2.1/nightly-unstable/html4/margin-collapse-012.htm
"
The margin collapsing rules apply exactly with the block-start margin substituted for the top margin and the block-end margin substituted for the bottom margin.
"
-->
<link rel="match" href="reference/margin-collapse-022-023-1.xht" />
<link rel="match" href="reference/margin-collapse-022-023-2.xht" />
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style type="text/css"><![CDATA[
div#test
{
border: teal solid 1em;
font: 25px/1 Ahem;
height: 4em; /* computes to 100px */
margin-bottom: 0.2em; /* computes to 5px */
writing-mode: vertical-rl;
}
div#wrapper
{
background-color: orange;
border-right: blue solid 1em;
width: 3em;
}
div#wrapper > div
{
height: 4em;
margin-right: 1em;
}
div#abs-pos
{
background-color: blue;
position: absolute;
top: 33px; /* body's margin + div#test's border-top */
width: 1em;
}
]]></style>
</head>
<body>
<div id="test">
<div id="wrapper">
<div id="widthless-static"></div>
<div id="abs-pos"></div>
</div>
</div>
</body>
</html>
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