In my first not post I mentioned and example of something I find quite interesting in the recent CSS features,that is the has() selector. And while I was preparing to write something about it, which I mightstill do, here’s a great article on Smashing Magazine written by Stephanie Eckles about this exact topic.
Stephanie goes into great detail about how to create advanced selectors but also reviews the CSS combinators and pseudoclasses.
A particularly nice example Stephanie brings is the Stateful Multi-Range Selection Groups where selected checkboxes are being visually grouped.
Go have a look at her post, lots to learn from it!