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Keeping Your CSS Small: scopes, containers, and other new abilities

When CSS was first created, web pages were pretty small and, honestly, not very complicated. That's no longer the case, but CSS has been slow in adapting to this new reality and helping authors deal with their complexity explosion. As a result, authors have had to turn to complex CSS management strategies, like atomic CSS or CSS-in-JS, to keep things understandable. This is no longer the case! I'll go over a number of new pieces of CSS and DOM technology, both mature and upcoming, that helps authors manage their CSS and keep things understandable *without* having to adopt some complex new tooling.