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css-supports-017.xht
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<htmlxmlns="http://www.w3.org/1999/xhtml">
<head>
<title>CSS Test: An @supports rule with invalid syntax must not apply rules inside it</title>
<linkrel="author" title="Cameron McCormack" href="mailto:cam@mcc.id.au" />
<linkrel="help" href="http://www.w3.org/TR/css3-conditional/#at-supports" />
<metaname="flags" content="invalid" />
<metaname="assert" content="The sub-condition of a negation in an @supports condition must be in parentheses."/>
<linkrel="match" href="support/pass.xht" />
<styletype="text/css"><![CDATA[
html { background-color: green }
@supportsnotnot (color: green) {
html { background-color: red }
}
]]></style>
</head>
<body>
</body>
</html>
