Here’s a super classy demo from Michelle Barker over on Codrops that shows how to build a scrollable and draggable timeline with GSAP. It’s an interesting challenge to have two different interactions (vertical scrolling and horizontal dragging) be tied together and react to each other. I love seeing it all done with nice semantic markup, code that’s easy to follow, clear abstractions, and accessibility considered all the way through.
Building a Scrollable and Draggable Timeline with GSAP