<!DOCTYPE html>
<html>
<head>
<style>
a:before {
content: attr(href);
}
</style>
</head>
<body>
<a href="../index.html">(W3Schools)</a>
<p>The attr() property inserts a specified attribute's value before or after the selected element(s).</p>
<p><b>Note:</b> For the attr property to work in IE8, a DOCTYPE must be declared.</p>
</body>
</html>