Parallax is a pattern in which different elements of a webpage move at varying speeds as the user scrolls, creating a three-dimensional, layered appearance. It once required JavaScript. Now we have scroll-driven animations in CSS, which is free from the main-thread blocking that can plague JavaScript animations. --- Bringing Back Parallax With Scroll-Driven CSS Animations originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.