<html><head>
<title>Syntax and parsing of new pseudo-elements</title>
<style type="text/css">
::selection { background: lime; }
:selection { background: red; }
</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 -->
<meta name="flags" content=" interact">
</head>
<body>
<p>Try selecting some text in this document. It should be have a green background.</p>
</body></html>