<!doctype html>
<html>
<head>
<title>CSS Test (Conditional Rules): Combinations of conjuctions, disjunctions, and negations of simple conditions in @supports should work</title>
<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
<link rel="author" href="http://opera.com" title="Opera Software ASA">
<link rel="help" href="http://www.w3.org/TR/css3-conditional/#at-supports">
<link rel="match" href="at-supports-001-ref.html">
<style>
div {
background-color:red;
height:100px;
width:100px;
}
@supports ((yada: 2kg !trivial) or ((not (foo:bar)) and (((visibility:hidden))))) {
div { background-color:green; }
}
</style>
</head>
<body>
<p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
<div></div>
</body>
</html>