RE: [#293] Summary for tables

>Proposal: CLASS="layout"
>

I like the idea of having a method for the author to explicitly state the
table purpose. They can use this method to create a table that has non
standard properties but will still be detected by user agents and
accessibility checking tools. This is an unusual situation but allows the
user maximum flexibility.

Using "class" may not be perfect but it will be used very infrequently (I
guess) and defining this CSS class should not cause much hindrance to the
author.

Chris