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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 Test: Relative Positioning - auto bottom = -top</title>
<link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact"/>
<link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-09-25 -->
<link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#relative-positioning" />
<link rel="match" href="relpos-calcs-001-ref.xht" />
<meta name="assert" content="For a relatively positioned element, if 'bottom'
is 'auto', its used value is minus the value of 'top'." />
<style type="text/css">
div {
height: 120px;
width: 120px;
}
.container {
margin-top: -60px;
}
.outer {
background: red;
position: relative;
top: 50%;
/*
div.outer's used top value is 60px
div.outer's used bottom value is -60px
div.outer's computed top value is 50%
div.outer's computed bottom value is auto and not -50%!
*/
}
.inner {
background: green;
position: relative;
bottom: inherit; /* using inheritance to test computed vs. used */
/* What is inherited is the computed bottom value of
its containing block, which is auto!
*/
}
.control {
background: red;
margin-top: -60px;
}
</style>
</head>
<body>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div class="container">
<div class="outer">
<div class="inner"></div>
</div>
</div>
<div class="control"></div>
</body>
</html>
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