<form id="newsletter" method="post" action="https://formkeep.com/f/ba101f5b69f0">
  <div class="row">
    <div class="col-md-4 col-md-offset-2 col-sm-6">
      <div class="form-group margin-bottom">
        <input name="email" type="email" class="form-control" id="email" placeholder="Enter your email address&hellip;" required>
      </div>
    </div>
    <div class="col-md-4 col-sm-6">
      <button type="submit" class="btn btn-success btn-block margin-bottom-lg"
          data-toggle="popover" data-trigger="hover" data-placement="top" title="Stay up to date with the Awesome"
          data-content="We'll send you updates on new Font Awesome releases, icons, and other stuff that we're working on. We won't spam you. Scout's honor.">
        Subscribe to Font Awesome Updates&nbsp;&nbsp;<i class="fa fa-envelope" aria-hidden="true"></i>
      </button>
    </div>
  </div>
</form>