Feel free to dip into child selectors, which give you so much more control over your pages and save so much typing it's really incredible. Can't recommend it enough (until you have to allow for IE4--then it sucks).
Anyway, a child selector is a declaration like:
table.results td { font: normal 600 Arial }
The "td" being the child. This will apply the font characteristics to only those td cells which are children of a table element with a class of "results". This means you only have to declare the class of the table element, not that of each td within that table. Neat.