// requires GSAP 3.10.0 or later
// older quickSetter version: https://codepen.io/GreenSock/pen/WNNNBpo

gsap.set(".flair", {xPercent: -50, yPercent: -50});

let xTo = gsap.quickTo(".flair", "x", {duration: 0.6, ease: "power3"}),
 yTo = gsap.quickTo(".flair", "y", {duration: 0.6, ease: "power3"});

window.addEventListener("mousemove", e => {
 xTo(e.clientX);
 yTo(e.clientY);
});