<!doctype html>
<head>
<title>CSS Test (Conditional Rules): Support for simple failing conditions in @media</title>
<link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact">
<link rel="help" href="https://www.w3.org/TR/css-conditional-3/#use">
<link rel="help" href="https://www.w3.org/TR/css-conditional-3/#at-media">
<link rel="match" href="at-supports-001-ref.html">
<meta name="assert"
content="Test passes if rules under a false @media condition are not applied.">
<style>
div {
background: green;
height: 25px;
width: 100px;
}
@media not all {
.test1 { background: red; }
}
@media unknown {
.test2 { background: red; }
}
@media (unknown) {
.test3 { background: red; }
}
@media not (unknown) {
.test4 { background: red; }
}
</style>
</head>
<body>
<p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
<div class="test1"></div>
<div class="test2"></div>
<div class="test3"></div>
<div class="test4"></div>
</body>
</html>
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