Inside a super fast CSS engine: Quantum CSS (aka Stylo)
https://hacks.mozilla.org/2017/08/inside-a-super-fast-css-engine-quantum-css-aka-stylo/ [hacks.mozilla.org]
2017-08-22 22:28
This new engine brings together state-of-the-art innovations from four different browsers to create a new super CSS engine.
source: L