Corrected layout

_layouts/main.html

@@ -19,7 +19,9 @@
                 <li><a href="/stream/">Streaming simulator</a></li>
             </ul>
         </nav>
-        {{ content }}
+        <section>
+            {{ content }}
+        <section>
         {{ page.extrajs }}
     </body>
 </html>

index.md

@@ -29,4 +29,3 @@ title: Index
     A mesh of a sphere is fully loaded,
     and displayed progressively. This test is here to prove that we can dynamically
     add vertices and faces to a mesh.
-