The document discusses how animations created in After Effects can now be exported as JSON and added to web pages using the Lottie library, providing a seamless handoff between designers and developers. It traces the history from designers having to code animations from scratch to receiving feedback, to Airbnb releasing Lottie in 2017 which allowed animations to be exported and added easily to web pages. It then shows how Webflow has integrated Lottie since 2019, allowing designers to export animations and add them directly to pages without developers needing to write JavaScript.