chromium/third_party/blink/web_tests/external/wpt/css/css-conditional/at-supports-content-002.html

<!doctype html>
<head>
	<title>CSS Test (Conditional Rules): @font-face rules inside @supports</title>
	<!-- This test is paired with at-media-content-002.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="help" href="https://www.w3.org/TR/css-conditional-3/#at-supports">
	<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-face-rule">
	<link rel="match" href="at-supports-001-ref.html">
	<meta name="assert"
	      content="Test passes if @font-face rules within @supports are supported.">
	<style>
		div {
			background: red;
			color: green;
			font: 100px/1 Blockify, sans-serif;
			width: 100px;
		}

		@supports (color: blue) {
			@font-face {
				font-family: 'Blockify';
				src: url('/fonts/Ahem.ttf');
			}
		}
		@supports not (color: blue) {
			@font-face {
				font-family: 'Blockify';
				src: local('Arial'), url('/fonts/fail.woff');
			}
		}
	</style>
</head>
<body>
	<p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
	<div class="test1">X</div>
</body>
</html>