<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>
<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>