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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 unbalanced invalid syntax must fail to parse</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="flags" content="invalid" />
+ <meta name="assert" content="An @supports condition with a parenthesized expression that has unbalanced parentheses must fail to parse."/>
+ <link rel="match" href="support/pass.xht" />
+ <style type="text/css"><![CDATA[
+ html { background-color: green }
+ @supports not ({ something @with (unbalanced parens }) {
+ html { background-color: red }
+ }
+ /* parser still looking for second close parenthesis */
+ html { background-color: red }
+ ]]></style>
+ </head>
+ <body>
+ </body>
+</html>