$('#forumTitle').before('<a id="back-to-the-main-site" style="position: absolute;" href="http://dev.opensprites.x10.mx/">Back to the main site</a>');

$('#forumTitle').before('<a id="back-to-the-main-site" style="position:absolute;top:40px;color:white;" href="http://dev.opensprites.x10.mx/">Back to the main site</a>');

Update custom.js