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<html><head>
<title>CSS Test (Conditional Rules): Support for @supports within @media</title>
<link href="mailto:florian@rivoal.net" rel="author" title="Florian Rivoal">
<link href="http://opera.com" rel="author" title="Opera Software ASA">
<link href="http://www.w3.org/TR/css3-conditional/#at-supports" rel="help">
<link href="reference/at-supports-001-ref.htm" rel="match">
<meta content="" name="flags">
<style>
div {
background-color:red;
height:100px;
width:100px;
}
@media all {
@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>