<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="well"> <div class="dropdown"> <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true"> Dropdown <span class="caret"></span> </button> <ul class="dropdown-menu" aria-labelledby="dropdownMenu1" style="top: -5px; left: -30px;"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> </ul> </div> </div> </div>

$(function(){ $(".dropdown").hover( function() { $('.dropdown-menu', this).stop( true, true ).fadeIn("fast"); $(this).toggleClass('open'); $('b', this).toggleClass("caret caret-up"); }, function() { $('.dropdown-menu', this).stop( true, true ).fadeOut("fast"); $(this).toggleClass('open'); $('b', this).toggleClass("caret caret-up"); }); });