You can edit / change the code and click run button <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <style> a:active { background-color: red; } </style> <script>var clicky_site_ids = clicky_site_ids || []; clicky_site_ids.push(101319977);</script><script async src="//static.getclicky.com/js"></script> <a href="http://www.google.com/">Google.com</a> <a href="http://www.facebook.com/">facebook.com</a> <p><b>Note:</b> The :active selector styles the active link.</p>