It’s possible to create components in a vacuum, but ultimately you have no idea whether or not those components can successfully address your user and business needs. I’ve witnessed firsthand several design system initiatives crash and burn due to components created in isolation.
A fun way to play around with the options in variable fonts.
Rachel follows up on my recent post about CSS grid in old IE with her thoughts.
As Jeremy notes, the usefulness of a tool like Autoprefixer is diminishing, which is a good thing. It is becoming far easier to code in a way that supports all browsers, where support means usable in an appropriate way for the technology the user has in front of them. Embrace that, and be glad for the fact that we can reduce complexity based on the increasing interoperability of CSS in our browsers.