Maybe a dumb question, but if you are making one of these larger sites, and you add classes to everything because there are "100s of <a> tags" ... does all the

Maybe a dumb question, but if you are making one of these larger sites, and you add classes to everything because there are "100s of <a> tags" ... does all the added bytes to the HTML matter less than the time it takes to parse CSS? or does it not make any difference, I guess we're talking about milliseconds here? Would some people choose to push it onto the client and reduce their bandwidth?