CSS would be nothing more than built-in functions to traverse nodes and change attributes. The latter of which would have already existed by virtue of having a

CSS would be nothing more than built-in functions to traverse nodes and change attributes. The latter of which would have already existed by virtue of having a programmatic interface with the DOM structure, and the former would have been invented in some form to build on whatever primitives existed, a la jQuery. Kinda makes me wish I lived in that alternate universe.