Comment your code:
Well-written code should speak for itself. However, there are plenty of instances
when including comments in your code is warranted. Consider For Example
</table>
</table>
</table>
Without comments, the nested tables are hard to follow. However, adding a few
comments allows you to more easily keep track of the nested elements’ purpose
</table> <!-- /Top heading -->
</table> <!-- /Main body -->
</table> <!-- /Floating page -->

NOTE:SEE Basic Rules for HTML Code-4th part for more rules