				width:100px;
			}
			@supports [margin: 0] {
				div { background-color:red !important; }
			}
			@supports (margin:0) { div { background-color:green; } }
		</style>
	</head>
	<body>
		<p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
		<div></div>
	</body>
</html>
