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+<!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="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact">
+ <link rel="help" href="http://www.w3.org/TR/css-cascade-3/#inherit-initial">
+ <link rel="help" href="http://www.w3.org/TR/css-cascade-4/#inherit-initial">
+ <link rel="match" href="reference/ref-filled-green-100px-square.xht">
+ <meta name="assert" content="color:unset is the same as color:inherit since color is an inherited property. background-color:unset is the same as background-color:initial since background-color is a non-inherited property.">
+ <style>
+.square {
+ width: 100px;
+ height: 100px;
+}
+.under {
+ background-color: green;
+ margin-bottom: -100px;
+}
+.outer {
+ color: green;
+ background: red;
+}
+.inner {
+ color: red;
+ background-color: red;
+ font-size: 40px;
+ text-align: center;
+}
+.inner {
+ color: unset;/* inherit from .outer */
+ background-color: unset;/* initial, transparent, .under shows thru */
+}
+ </style>
+</head>
+<body>
+ <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+ <div class="outer square">
+ <div class="under square"></div>
+ <div class="inner square">XX</div>
+ </div>
+</body>
+</html>