<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 ----------> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script> <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" /> <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.10.0/js/bootstrap-select.min.js"></script> <link href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.10.0/css/bootstrap-select.min.css" rel="stylesheet" /> <div class="container"> <div class="row"> <div class="col-xs-12"> <div class="box"> <!-- /.box-header --> <div class="box-body"> <form> <div class="form-group row"> <label for="" class="col-sm-2 form-control-label">Country</label> <div class="col-sm-10"> <select class="form-control selectpicker" id="select-country" data-live-search="true"> <option data-tokens="china">China</option> <option data-tokens="malayasia">Malayasia</option> <option data-tokens="singapore">Singapore</option> </select> </div> </div> </form> </div> <!-- /.box-body --> </div> <!-- /.box --> </div> <!-- /.col --> </div> <!-- /.row --> </div> <!-- /.container -->