Native does not automatically mean accessible, consistent, or appropriate. Test keyboard behavior, assistive technology, reduced-motion settings, and the browsers your audience actually uses.
Back to basics, with caveats.
HTMLcat is a notebook of native HTML, CSS, and JavaScript features that are useful, easy to forget, or newly available.
Each post-it aims to answer four small questions: what does this do, why is it useful, how mature is it, and what can go wrong?
Found a correction or a small platform trick worth keeping? Contribute a post-it.