"Tasteful styling" refers to a design or arrangement that is attractive, elegant, and done with good judgment or discretion. It means something is done in a way that is pleasing to the eye, without being excessive or flashy. Full definition
«Many women in the last month of pregnancy feel like a whale, walk like a penguin, and don't feel attractive at all, but I say we should flaunt those beautiful bellies in tasteful style!» (youfrillme.com)
They even make ribbed, long sleeve tops like this Keep It Going top sexy, and lends an overall tasteful style with the shoulder - baring action happening. (showpo.com)