<div class="row">
  <div class="col-sm-2"></div>
  <div class="col-sm-8">
    <img src="http://chart.apis.google.com/chart?cht=qr&chs=300x300&chl=<{$block.url}>&chld=H|0" alt="QR Code" class="img-responsive">
  </div>
  <div class="col-sm-2"></div>
</div>
