col-md-4">.col-xs-6 .col-md-4</div>
    </div>
    <div class="row show-grid">
      <div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
      <div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
      <div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
    </div>
    <div class="row show-grid">
      <div class="col-xs-6">.col-xs-6</div>
      <div class="col-xs-6">.col-xs-6</div>
    </div>
  </div>
{% highlight html %}
<!-- Stack the columns on mobile by making one full-width and the other 