Tables in CSS

Hi Han,

I’m new with wordpress and your theme is the best that i saw, but i ahave a problem with tables. They have the same width in the visual editor of the pages and in the code (sorry for my english), but in the web, the tables have different width.

I have edited CSS:

table { width: 100%; }
td.ancho_a { width: 20%; }
td.ancho_b { width: 15%; }

but when i try it on a table <td class=”ancho_a”… nothing changes.
What i have to do to make all the tables with the same width?

Thanks a lot and sorry for my english again.