css/css-conditional/at-supports-045.html

<!doctype html>
<head>
	<title>CSS Test (Conditional Rules): Invalid rules after @supports</title>
	<!-- This test is paired with at-media-003.html ; please keep them in sync -->
	<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/#contents-of">
	<link rel="match" href="at-supports-001-ref.html">
	<meta name="assert"
	      content="Test passes if rules required to occur before all style rules are invalid after @supports.">
	<style>
		@namespace x "http://www.w3.org/";
		@supports (background: blue) { /* invalidates later rules even if empty */ }
		@import "support/fail.css";
		@namespace y "http://www.w3.org/";

		.test1, x|div { background: green; }
		.test1, y|div { background: red; }

		div {
			background: red;
			height: 50px;
			width: 100px;
		}
	</style>
	<style>
		@supports (background: blue) {
			/* @supports isn't invalidated, only misordered stuff after it is */
			.test2 { background: green; }
		}
		@import "support/fail.css";
	</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>
</body>
</html>