That doesn't matter, you had it right the first time and there is a still a reason and a need for being able to specify single elements of a property. Say, you set a specific font size and font family for the body, but want some element to have a slightly smaller font size... having to explicitly repeat all the stuff would make CSS unworkable. (look up the "font" short hand, there is quite a lot in there, and that's just one of so many, e.g. backgrounds and background images)

I'm referring specifically to padding; whether reduction of options is appropriate in other cases I didn't address. The balance if brevity, specificity, and distinct function (e.g., inheritance) is not the same for each of the cases where CSS has multiple forms with overlapping function.