gecko-dev/layout/reftests/w3c-css/submitted/conditional3/css-supports-019.xht

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>CSS Test: An @supports rule with invalid syntax must not apply rules inside it</title>
<link rel="author" title="Cameron McCormack" href="mailto:cam@mcc.id.au" />
<link rel="help" href="http://www.w3.org/TR/#at-supports" />
<meta name="flags" content="" />
<meta name="assert" content="A conjunction in an @supports condition must have both sub-conditions enclosed in parentheses."/>
<link rel="match" href="pass.html" />
<style type="text/css"><![CDATA[
html { background-color: green }
@supports not (color: rainbow) and not (color: iridescent) {
html { background-color: red }
}
]]></style>
</head>
<body>
</body>
</html>