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<!doctype html>
<head>
	<title>CSS Test (Conditional Rules): Support for simple failing conditions in @media</title>
	<link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact">
	<link rel="help" href="https://www.w3.org/TR/css-conditional-3/#use">
	<link rel="help" href="https://www.w3.org/TR/css-conditional-3/#at-media">
	<link rel="match" href="at-supports-001-ref.html">
	<meta name="assert"
	      content="Test passes if rules under a false @media condition are not applied.">
	<style>
		div {
			background: green;
			height: 25px;
			width: 100px;
		}
		@media not all {
			.test1 { background: red; }
		}
		@media unknown {
			.test2 { background: red; }
		}
		@media (unknown) {
			.test3 { background: red; }
		}
		@media not (unknown) {
			.test4 { background: red; }
		}
	</style>
</head>
<body>
	<p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
	<div class="test1"></div>
	<div class="test2"></div>
	<div class="test3"></div>
	<div class="test4"></div>
</body>
</html>