/**
 * gsap lib https://greensock.com/get-started-2#controllingYourAnimations
 */
let development_debug = true;
gsap.fromTo("#main_title", {
  opacity: 0,
  top: 200
},{
  opacity:1,
  top: 100,
  duration: 1.5,
  ease: "sine"
})

gsap.to("#hand", {
  top: 400,
  duration: 1,
  scrollTrigger: {
    trigger: '#cover',
    scrub: 1,
    markers: development_debug,
  }
});