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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<head>
<title>NEGATED :checked pseudo-class</title>
<style type="text/css"><![CDATA[input, span { background-color : red }
input:not(:checked), input:not(:checked) + span { background-color : lime}]]></style>
<link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"/>
<link rel="help" href="https://www.w3.org/TR/css3-selectors/#selectors"/> <!-- bogus link to make sure it gets found -->
</head>
<body>
<p>
<input type="checkbox"></input> <span>Everything in this paragraph should have a green background</span></p>
</body>
</html>