Happy Unsubscribe from everything day!

Oh, that's a great example! Thanks!

This has come up before, and I'm curious- what's your use case for a shared popover?

Yes, `position-anchor: auto` handles that. But you may not want to share popovers, as you can't easily switch between anchors while keeping the popover open. This demo might help explain what I mean- codepen.io/jamessw/pen/...

It's available behind a flag in Firefox! Go to about:config, and enable layout.css.anchor-positioning.enabled. And while it's an editor's draft, there's a lot that (about to be) interoperable!

Great question! We will talk about it on Thursday but the short version is that transforms intentionally don’t work… yet.

What questions do you have for us about anchor positioning?

It’s the thing I miss from when I was working in Dart.

Finally got around to tracking it down and documenting it. Turns out if you nest a popover and give it position-try-fallbacks, your browser will hang indefinitely.