Sorry if you know about this, I can't tell from your post. But nesting CSS has been added. Here's the MDN article: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_nesting

Browser support is here: https://caniuse.com/?search=nesting

Impugning CSS and not knowing that nested selectors work fine everywhere is just perfect example of what I'm discussing here: https://news.ycombinator.com/item?id=44876345