li.L0, li.L1, li.L2, li.L3, li.L5, li.L6, li.L7, li.L8 { list-style-type: decimal; } Using jQuery with other javascript code that also uses $ as alias, may break one of your script code. To resolve the conflict, jQuery provide noConflict() method. Let me share, how it resolved the problem, I was facing.  I added following jQuery code to validate a form. <script type="text/javascript">