vjeux (of React fame) gave a presentation on a similar system they were using at Facebook https://speakerdeck.com/vjeux/react-css-in-js https://speakerdeck.com/

vjeux (of React fame) gave a presentation on a similar system they were using at Facebook https://speakerdeck.com/vjeux/react-css-in-js https://speakerdeck.com/vjeux/react-css-in-js "This-is-not-what-I-am-used-to" objections notwithstanding, it's certainly an interesting approach to solve some CSS issues.