glowingbear-mainbox/directives/input.html

<form class="form form-horizontal" id="inputform" ng-submit="sendMessage()">
  <div class="input-group">
    <textarea id="{{inputId}}" class="form-control favorite-font" ng-trim="false" rows="1" autocomplete="off" ng-model="command">
    </textarea>
    <span class="input-group-btn">
      <button class="btn btn-default btn-primary">Send</button>
    </span>
  </div>
</form>