Edit This Code:
<!DOCTYPE html>
<html>
<head>
<style>
a:after {
    content: " (" attr(href) ")";
}

</style>
</head>
<body>

<p><a href="../index.html">W3Schools</a> contains free tutorials and references.</p>
<p><b>Note:</b> IE8 supports the content property only if a !DOCTYPE is specified.</p>

</body>
</html>


Result:
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