Entering or leaving a ScrollTrigger area can make an animation play, pause, resume, reverse, restart, or complete...or you can make the scrollbar can act like a scrubber!
Pin elements in place
Make an element appear immune to scroll changes while the ScrollTrigger is active. This is surprisingly useful for creating slick effects and keeping your animation in view during the scroll.
Insane levels of flexibility
ScrollTrigger is a control freak's dream when it comes to choreographing animations, but its rich callback system also lets you accomplish things totally unrelated to animation.
