<div class="ts-widget-newsletter">

  <div class="newsletter-form">
      <div class="form-group">
	<input type="email" class="form-control" name="EMAIL" placeholder="Your email address" required />
      </div>
    <div class="btn-group">
          <button class="btn btn-primary" type="submit">
            <i class="fa fa-paper-plane"></i>
          </button>
    </div>
  </div>
</div>