<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/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="col-sm-4"> <h2 class="text-center">Contact us</h2> <form method="POST" action=""> <div class="col-sm-12 feedback"> <textarea required name="comment" class="form-control" placeholder="Input your text here"></textarea> </div> <div class="col-sm-12 clearfix"> <button class="btn btn-warning btn-block">Send</button> </div> </form> </div> </div> </div>

.feedback textarea{height: 180px; }