chromium/third_party/blink/web_tests/fast/media/media-type-syntax-01.html

<html>
<head>
<title>CSS2.1 media type test: parsing simple @media css rule.</title>
<link rel="help" href="http://www.w3.org/TR/REC-html40/types.html#h-6.13" />

<style type="text/css">
@media all { p { color: green } }
</style>

</head>
<body>
</body>
<p> This text should be green. </p>
</html>