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<title>CSS Test: An @supports rule with balanced invalid syntax 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="flags" content="">
<meta name="assert" content="An @supports condition must successfully parse a parenthesized expression that has invalid syntax with balanced parentheses.">
<link rel="match" href="support/pass.htm">
<style type="text/css">
html { background-color: red }
@supports not ({ something @with [ balanced ] parens }) {
html { background-color: green }
}
</style>
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<body>
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