sc">Specifies whether to include the DITA class ancestry inside the XHTML elements. The allowed values are <span class="keyword option">yes</span> and <span class="keyword option">no</span>; the default value is <span class="keyword option">yes</span>.</dd>
<dd class="dd pd ddexpand">For example, the &lt;prereq&gt; element (which is specialized from section) would generate <samp class="ph codeph">class="section prereq</samp>. The allowed values are
                <span class="keyword option">yes</span> and