not that i'm disagreeing that semantic html is a good thing, but shouldn't one consider the costs of using a system such as this? specifically, doing css modifi

not that i'm disagreeing that semantic html is a good thing, but shouldn't one consider the costs of using a system such as this? specifically, doing css modifications in the browser becomes more difficult since we can't just plop in a mixin the same way we could in the sass file. i can't really say how much more difficult it would be to debug css in the browser when using this system either.. though i don't see a reason why it should be easier than a traditional grid system to debug, i could think of some reasons that it might be more difficult. i'm not trying to knock on this framework. i think thoughtbot is great, i love paperclip. i am a bit hesitant about the practical value of this though..