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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 balanced invalid syntax within parentheses must evaluate to false</title>
<link rel="author" title="Cameron McCormack" href="mailto:cam@mcc.id.au" />
<link rel="help" href="http://www.w3.org/TR/css3-conditional/#at-supports" />
<meta name="assert" content="An @supports condition must successfully parse even if a declaration has an empty property value."/>
<link rel="match" href="support/pass.xht" />
<style type="text/css"><![CDATA[
html { background-color: red }
@supports (unknown:) or (color: green) {
html { background-color: green }
}
]]></style>
</head>
<body>
</body>
</html>
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