BASSCSS – Next level css tooltip

This looks nice and seems to be a decent solution to setting a consistent vertical rhythm, but doesn't seem to really use any Sass features, and the old OOCSS-style layout helpers leave a bad taste in my mouth. Seems easier to extend placeholders rather than use those classes all over the place in your markup. Sure, you CAN do something like this:

.oh

but do you really want to?