I always quote Groundhog Day as the perfect example of "Comedy that makes you think... a LOT", and I usually watch it once or twice every year. It's simply timeless. Rita: "Would you like to have dinner with Larry and me?" Phil: "No, thank you. I've seen Larry eat."

It's not entirely CSS fault (actually, I think it's not CSS fault at all, bat that's just my opinion). Cascading Style Sheets are designed so that you either avoid repeating classes/names/tags, or avoid repeating properties definitions. If you repeat both, you're doing it wrong. If browsers fully supported tag selectors and properties inheritance, you would probably cut duplicated stuff in CSS by 75%.