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HTML

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Insecure Resource

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CSS

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CSS Base

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                .smooth-scroll
	.text
		p Lorem ipsum dolor sit amet consectetur adipisicing elit. Adipisci quas laudantium, consequuntur iste ea officia deserunt perferendis repudiandae tempora, odit obcaecati est ullam non officiis exercitationem sed animi. Adipisci, sed.
		p Lorem ipsum dolor sit amet consectetur adipisicing elit. Adipisci quas laudantium, consequuntur iste ea officia deserunt perferendis repudiandae tempora, odit obcaecati est ullam non officiis exercitationem sed animi. Adipisci, sed.
		p Lorem ipsum dolor sit amet consectetur adipisicing elit. Adipisci quas laudantium, consequuntur iste ea officia deserunt perferendis repudiandae tempora, odit obcaecati est ullam non officiis exercitationem sed animi. Adipisci, sed.
		p Lorem ipsum dolor sit amet consectetur adipisicing elit. Adipisci quas laudantium, consequuntur iste ea officia deserunt perferendis repudiandae tempora, odit obcaecati est ullam non officiis exercitationem sed animi. Adipisci, sed.

	.slider
		.slider__list
			- var item = 0;
				while item < 5
					- item++;
					.slider__item
						h1= 'item ' + item

	.text
		p Lorem ipsum dolor sit amet consectetur adipisicing elit. Adipisci quas laudantium, consequuntur iste ea officia deserunt perferendis repudiandae tempora, odit obcaecati est ullam non officiis exercitationem sed animi. Adipisci, sed.
		p Lorem ipsum dolor sit amet consectetur adipisicing elit. Adipisci quas laudantium, consequuntur iste ea officia deserunt perferendis repudiandae tempora, odit obcaecati est ullam non officiis exercitationem sed animi. Adipisci, sed.
!

CSS 

              
                *
  box-sizing: border-box

body
  width: 100%
  overflow-x: hidden

.smooth-scroll
  width: 100vw  
  overflow: hidden
  
.text
  width: 100%
  padding: 5rem
  overflow: hidden

.slider__list
  width: 100%
  display: flex
  padding: 0
  
.slider__item
  flex: 0 0 100%
  height: 100vh
  display: flex
  align-items: center
  justify-content: center
  border: 1px solid #000
  background: tomato
!

JS 

              
                gsap.registerPlugin(ScrollTrigger);

// const locoScroll = new LocomotiveScroll({
// 	el: document.querySelector(".smooth-scroll"),
// 	smooth: true
// });

// locoScroll.on("scroll", ScrollTrigger.update);
// ScrollTrigger.scrollerProxy(".smooth-scroll", {
// 	scrollTop(value) {
// 		return arguments.length
// 			? locoScroll.scrollTo(value, 0, 0)
// 			: locoScroll.scroll.instance.scroll.y;
// 	},
// 	getBoundingClientRect() {
// 		return {
// 			top: 0,
// 			left: 0,
// 			width: window.innerWidth,
// 			height: window.innerHeight
// 		};
// 	},
// 	pinType: document.querySelector(".smooth-scroll").style.transform
// 		? "transform"
// 		: "fixed"
// });

// ScrollTrigger.addEventListener("refresh", () => locoScroll.update());
// ScrollTrigger.refresh();

let slider = document.querySelector(".slider");
let list = document.querySelector(".slider__list");
let items = document.querySelectorAll(".slider__item");

const TL = gsap.timeline({
	defaults: { ease: "none" },
	scrollTrigger: {
		trigger: slider,
		scrub: 1,
		pin: true,
		start: "top top",
		scroller: "body",
		end: `+=${items.length - 1}00%`,
		snap: {
			snapTo: "labels",
			duration: { min: 0.2, max: 1 },
			delay: 0,
			ease: "power1.inOut"
		}
	}
});
TL.addLabel(`l0`);

items.forEach((el, index) => {
	if (index > 0) {
		TL.to(list, { xPercent: -100 * index });
		TL.addLabel(`l${index}`);
	}
});
!
999px

Console