Maybe I am being too picky. I want to put cell padding in some tables but not others, without editing every single td element. I would like to make it html5 compliant, which means not using the cellpadding property of the table. But I would like something equivalent to cellpadding - ie something I can apply to the properties of a whole table, on a table by table basis.
To make it even more complicated, I want collapsed borders, which I think rules out using the cell spacing property. Is there something tricky I can do there?