<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="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <select name="country" class="countries order-alpha" id="countryId"> <option value="">Select Country</option> </select> <select name="state" class="states order-alpha" id="stateId"> <option value="">Select State</option> </select> <select name="city" class="cities order-alpha" id="cityId"> <option value="">Select City</option> </select> </div> </div> <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <script src="//geodata.solutions/includes/countrystatecity.js"></script>