Ilja on Mythryl: “% := all tracked, not all used And TIL @layer / cascade layers is at…”

Popover element (incl. showPopover) is approaching 90% on caniuse. Anchor positioning is at 79%. Anchor scope is at 78%. Two polyfills from @oddbird.dev cover large parts of the spec (incl. anchor-scope). I started using it at work this week.

MDN Web Docs@developer.mozilla.org

Using CSS Anchor Positioning with repeated components? anchor-scope is now part of Baseline 2026 🆕 It prevents tooltips/popovers from accidentally attaching to the wrong anchor elsewhere in the DOM. Check it out 👇 developer.mozilla.org/en-US/docs/...

Post