The `:focus-within` Pseudo Class

Nice find by Ian Devlin:
The :focus-within pseudo class becomes active when an element itself has focus or if any of its descendants does.
Selecting a parent element based on children is lonnng awaited. The crown jewel of that is :has(). I wonder if that’s getting closer.
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The `:focus-within` Pseudo Class is a post from CSS-Tricks

Link: https://www.iandevlin.com/blog/2017/04/css/the-focus-within-pseudo-class