/pre>
                  <p class="do" style="text-align:justify"><mark class="tertiary">Do:</mark>&nbsp;You can implement single collapses (otherwise known as spoilers), using a <code>.tabs</code><code>.stacked</code> container with only one checkbox-based tab.</p>
                </div>
                <div class="col-sm-12 col-md-6 col-sm-last col-md-normal">
                  <pre>&lt;div class=&quot;tabs stacked&quot;&gt;
  &lt;input type=&quot;radio&quot; name=&quot;accordion&quot; id=&quot;a1&quot; ch