<!DOCTYPE html>
<html>
<head>
<style>
a:after {content: " (" attr(href) ")";}
</style>
</head>
<body>
<p><a href="../index.html">Visit W3Schools</a></p>
<p><a href="../html/index.html">Visit W3Schools' HTML tutorial</a></p>
<p><b>Note:</b> IE8 supports the attr() function only if a !DOCTYPE is specified.</p>
</body>
</html>