Thank you very much akapowl, and thank you all that entered this topic this works as I expected, but again, I have a question, can I do something like this?
I want to do this, because I have my menu bar above, and I don't want the items to be the height of the screen, but the height of the screen minus the menu bar height
end: '+=100% - ' + $(".barramenu").height()
gsap.utils.toArray(".cascade .item").forEach(panel => {
let fundo = panel.querySelector('.fundo')
gsap.timeline({ //cria timeline
scrollTrigger: {
trigger: panel,
scrub: true,
start: 'top top',
end: '+=100% - ' + $(".barramenu").height()
}
}).to(fundo, { width: "100%"});
ScrollTrigger.create({
trigger: panel,
pin: true,
pinSpacing: false,
start: 'top top',
end: '+=200% - ' + $(".barramenu").height()
});
});