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Test Info:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Cascade: the "unset" value</title>
<link rel="author" title="Chris Rebert" href="http://chrisrebert.com">
<link rel="match" href="reference/ref-filled-green-100px-square.xht">
<meta name="assert" content="display:unset should be the same as display:initial since 'display' is not an inherited property. display:unset should be the same as display:inline since 'inline' is the initial value of 'display'.">
<style>
.square {
width: 100px;
height: 100px;
}
.green {
background-color: green;
}
.top {
position: absolute;
}
.fail {
background-color: red;
display: inline-block;
display: unset;/* initial, inline */
}
</style>
</head>
<body>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div class="top"><span class="square fail"></span></div>
<div class="green square"></div>
</body>
</html>