Well, yes, that's my point. We don't need more CSS supersets, we need fewer; one standard one, that is called "CSS" (or "CSS4" or whatever). That, then, can be

Well, yes, that's my point. We don't need more CSS supersets, we need fewer; one standard one, that is called "CSS" (or "CSS4" or whatever). That, then, can be the target for frameworks like Compass, instead of them targeting CSS 2.1/3 or targeting only a single CSS superset like Less, Sass, or now Closure.