let tl = gsap.timeline({
scrollTrigger: {
trigger: intro,
start: "center center",
end: () => end,
scrub: 2,
pin: true,
anticipatePin: 1,
},
defaults: {ease: "none"}
});
tl.add('start')
.fromTo(intro.querySelector(".intro__form-content"), {
yPercent: 100,
scale: 0.7,
opacity: 0,
ease: Power1.easeInOut,
visibility: 'hidden',
}, {
yPercent: 0,
scale: 0.7,
opacity: 0.5,
ease: Power1.easeInOut,
visibility: 'visible'
}, 'start')