Frank Yan discussed at React Conf some of the technologies and strategies powering FB5, the new facebook.com, addressing topics such as Facebook’s approach to CSS-in-JS.

StyleX, facebook.com ’s CSS-in-JS library, also presented at React Finland 2021, falls in the static CSS-in-JS category. Some of the libraries under study are framework-agnostic.

Beyond the usual quick tips, let's look at both the business case and the technical side of keeping React bundles lean.