We used to do this during the Web 2.0 era with PNGs, GIFs and `progid:DXImageTransform` because back then you couldn't do it with standard CSS alone. Then as CSS (and MS!) evolved to enable it, the world moved on to flat UIs. It's ironic, isn't it?
Remember motiongerm and the whole sleek 60fps flash design thingamabob? Bespoke interfaces everywhere
From bespoke to Bootstrap, to Tailwindshitification