the difference seems to be * the burden of CSS implementation of standards, is mostly on browsers * the new standards are supposed to be reducing complexity.

the difference seems to be * the burden of CSS implementation of standards, is mostly on browsers * the new standards are supposed to be reducing complexity. Nobody wants to go back to hacking rounded corners together. CSS Grid finally gave us a sane way to specify 2D layouts, which were previously all designed by hacking 1D-priority things.