<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.3/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 col-md-4">
<div class="panel panel-default">
<div class="panel-body" id="resizable">
<form accept-charset="UTF-8" action="" method="POST" >
<textarea id="fullfilled" class="form-control counted" name="message" placeholder="Type in your message" rows="5" style="margin-bottom:10px;"></textarea>
<h6 class="pull-right" id="counter">320 characters remaining</h6>
<button class="btn btn-info" type="submit">Post New Message</button>
</form>
</div>
</div>
</div>
</div>
</div>
<p contenteditable="contenteditable">hello!</p>