<link href="//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//netdna.bootstrapcdn.com/bootstrap/3.2.0/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="row"> <div class="input-group input-group-lg"> <input type="text" class="form-control"> <div class="input-group-btn"> <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">Advanced <span class="caret"></span></button> <ul class="dropdown-menu pull-right" role="menu"> <li><a href="#">Option 1</a></li> <li><a href="#">Option 2</a></li> <li><a href="#">Option 3</a></li> <li class="divider"></li> <li><a href="#">Option 4</a></li> </ul> </div> </div> </div> </div>

body { margin: 20px; }