Specification

https://drafts.csswg.org/css-anchor-position-2/#anchored

Description

The ability to style descendants of CSS anchor positioned elements based on their applied position-try-fallbacks using @container queries.

Documentation

Explainer: https://github.com/w3c/csswg-drafts/blob/main/css-anchor-position-1/anchored_container_query.md

Demo: https://codepen.io/una/pen/ZYbzrLg

Youtube: https://www.youtube.com/watch?v=u5-Vuduc9mk

Browser support

Chromium feature: https://chromestatus.com/feature/5177580990496768