.spammer-detected { font-size: 14px!important; color: #fff!important; background: #5cb0d8!important;margin: 25px; border-radius: 4px; display: inline-block; padding: 10px 15px!important; }

<script type='text/javascript'> //<![CDATA[ function blockLinks(parentID, children) { var parent = document.getElementById(parentID), content = parent.getElementsByTagName(children); for (var i = 0; i < content.length; i++) { if (content[i].innerHTML.indexOf('</a>') !== -1) { content[i].innerHTML = "<mark>You are going to make spam</mark> Spam is not allowed!"; content[i].className = "spammer-detected"; } } } blockLinks('comment-holder', 'p'); //]]> </script>