Counterpoint, inlining CSS / JS used to be an optimization in early website optimizers, because fetching multiple files incurred more HTTP overhead, and (...I t

Counterpoint, inlining CSS / JS used to be an optimization in early website optimizers, because fetching multiple files incurred more HTTP overhead, and (...I think) compression was more efficient working on a single file vs three. I don't think these arguments hold up anymore with http 2/3, but still, it used to be an optimization.