<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>