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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: Z-index set to zero prefixed with a minus sign</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
<link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-07-03 -->
<link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#propdef-z-index" />
<link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#z-index" />
<link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
<meta name="assert" content="The property z-index set to '0' prefixed with a minus sign is read as value '0'." />
<style type="text/css">
#div1
{
background: red;
height: 100px;
left: 0;
position: absolute;
top: 0;
width: 100px;
z-index: -0;
}
#div2
{
background: green;
height: 100px;
left: 0;
position: absolute;
top: 0;
width: 100px;
}
#wrapper
{
position: relative;
}
</style>
</head>
<body>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="wrapper">
<div id="div1"></div>
<div id="div2"></div>
</div>
</body>
</html>
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