  content="Test passes if invalid rules within @media do not invalidate the @media rule.">
	<style>
		div {
			background: red;
			height: 20px;
			width: 100px;
		}

		@supports (background: blue) {
			@import "support/fail.css";
			.test1 { background: green; }
		}
		@supports (background: blue) {
			@namespace foo "http://www.w3.org/";
			.test2 { background: green; }
			.test2:not(foo|div) { background: red; }
		}
		@supports (background: blue) {
			@charset "utf-8";
			.test3 { background: green; }
		}