<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <h2></h2> </div> </div>

<script type="text/javascript"> $('.j_open').on('click', function(e) { e.preventDefault(); $(this).closest('ul').find('.j_open_ul').slideToggle('slow'); }); </script> <li class="dashboard_nav_menu_li"> <a class= j_open">teste</a> <ul class="dashboard_nav_menu_sub j_open_ul"> <li class="dashboard_nav_menu_sub_li"><a href="#">Link 1</a></li> <li class="dashboard_nav_menu_sub_li"><a href="#">Link 2</a></li> <li class="dashboard_nav_menu_sub_li"><a href="#">Link 3</a></li> <li class="dashboard_nav_menu_sub_li"><a href="#">Link 4</a></li> </ul> </li> <li class="dashboard_nav_menu_li"> <a class= j_open">teste</a> <ul class="dashboard_nav_menu_sub j_open_ul"> <li class="dashboard_nav_menu_sub_li"><a href="#">Link 5</a></li> <li class="dashboard_nav_menu_sub_li"><a href="#">Link 6</a></li> <li class="dashboard_nav_menu_sub_li"><a href="#">Link 7</a></li> <li class="dashboard_nav_menu_sub_li"><a href="#">Link 8</a></li> </ul> </li>