the top is a page title. The example marks the page
                                title as &lt;th&gt;, and provides a summary
                                attribute indicating that the table is a layout table.</p>
         </section>
         <pre xml:space="preserve">
 &lt;table summary="layout table"&gt;
 &lt;tr&gt;
   &lt;th colspan=3&gt;Page Title&lt;/th&gt;
 &lt;/tr&gt;
 &lt;tr&gt;
   &lt;td&gt;&lt;div&gt;navigation content&lt;/div&gt;&lt;/td&gt;
   &lt;td&gt;&lt;div&gt;main content&lt;/div&gt;&lt