Not exactly what you are looking for, but if you haven't seen it, firefox has some really interesting blog posts about how their css engine works, e.g. https://

Not exactly what you are looking for, but if you haven't seen it, firefox has some really interesting blog posts about how their css engine works, e.g. https://hacks.mozilla.org/2017/08/inside-a-super-fast-css-engine-quantum-css-aka-stylo/ https://hacks.mozilla.org/2017/08/inside-a-super-fast-css-en... that i personally found really enlightening