<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 ----------> <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 ----------> <!--Pulling Awesome Font --> <link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"> <div class="container"> <div class="row"> <div class="col-md-offset-5 col-md-3"> <div class="form-login"> <h4>เข้าสู่ระบบ </h4> <input type="text" id="userName" class="form-control input-sm chat-input" placeholder="ชื่อผู้ใช้" /> </br> <input type="text" id="userPassword" class="form-control input-sm chat-input" placeholder="รหัสผ่าน" /> </br> <div class="wrapper"> <span class="group-btn"> <a href="#" class="btn btn-primary btn-md">login <i class="fa fa-sign-in"></i></a> </span> </div> </div> </div> </div> </div>