I’ve put hours into learning CSS over the years and continue to do so happily. Building things with HTML and CSS is the part of the work I enjoy the most.
But it always felt like there were gaps in my knowledge. So I just enrolled in Poetic CSS to finally understand it from the inside out.
I think the way we currently write CSS subtly shapes the way we think about components. By having the visual styles completely decoupled from the semantic meaning, accessibility is easy to forget, because we can’t physically see missing attributes. When the styling hook is anchored to semantics, you can’t get the visual styles without also getting the parts that make it accessible.