<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="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/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 ----------> <div class="container h-80"> <div class="row align-items-center h-100"> <div class="col-3 mx-auto"> <div class="text-center"> <p id="profile-name" class="profile-name-card"></p> <form class="form-signin"> <input type="password" name="password" id="inputPassword" class="form-control form-group" placeholder="password" required autofocus> <button class="btn btn-lg btn-primary btn-block btn-signin" type="submit">enter</button> </form><!-- /form --> </div> </div> </div> </div>