const scrollButton = document.querySelector('#scrollUp');
const scrollButtonArrow = scrollButton.querySelector('svg');
scrollButton.addEventListener('mouseenter', () => {
var staggerTimeline = new TimelineLite();
staggerTimeline
.staggerTo(scrollButtonArrow, .3, { y: "-50px", ease: Back.easeOut, }, 0)
.staggerFrom(scrollButtonArrow, .3, { y: "50px", ease: Back.easeOut, }, 0)
.staggerTo(scrollButtonArrow, .3, { y: "0px", ease: Back.easeOut, }, 0).repeat(0);
});