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HTML

              
                <div class="container">
  <section data-bgcolor="#bcb8ad" data-textcolor="#032f35">
    <div>
      <h1 data-scroll data-scroll-speed="1"><span>Horizontal</span> <span>scroll</span> <span>section</span></h1>
      <p data-scroll data-scroll-speed="2" data-scroll-delay="0.2">With WAAPI + ViewTimeline</p>
    </div>

  </section>

  <section id="sectionPin">
    <div class="pin-wrap">
      <h2>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</h2>
      <img src="https://images.pexels.com/photos/5207262/pexels-photo-5207262.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=900" alt="">
      <img src="https://images.pexels.com/photos/3371358/pexels-photo-3371358.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=900" alt="">
      <img src="https://images.pexels.com/photos/3618545/pexels-photo-3618545.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=900" alt="">

    </div>
  </section>
  <section data-bgcolor="#e3857a" data-textcolor="#f1dba7"><img src="https://images.pexels.com/photos/4791474/pexels-photo-4791474.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500" alt="">
    <h2 data-scroll data-scroll-speed="1" class="credit">
		Created by <a href="https://twitter.com/bramus" target="_top" rel="noreferrer noopener">Bramus</a>.<br /><br />Design and content by <a href="https://codepen.io/cameronknight/pen/qBNvrRQ" target="_top">Cameron Knight</a>.</h2>
  </section>
</div>
              
            
!

CSS

              
                :root {
  --text-color: #111;
  --bg-color: #b9b3a9;
}

html {
  max-width: 100vw;
}

html, body {
	margin: 0;
	padding: 0;
}

body {
  font-family: termina, sans-serif;
  color: var(--text-color);
  background: var(--bg-color);
  transition: 0.3s ease-out;
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
  overscroll-behavior: none;
}

section {
  min-height: 100vh;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  position: relative;
}

section:not(#sectionPin) {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  grid-gap: 2rem;
  padding: 50px 10vw;
  margin: auto;
  place-items: center;
}

img {
  height: 80vh;
  width: auto;
  object-fit: cover;
}

h1 {
  font-size: clamp(1.5rem, 16vw + 0.5rem, 5rem);
  line-height: 1;
  font-weight: 800;
  margin-bottom: 1rem;
  position: absolute;
  top: 10vw;
  left: 10vw;
  z-index: 4;
  overflow-wrap: break-word;
  hyphens: auto;

  @media (max-width: 768px) {
    font-size: clamp(1.5rem, 5vw + 0.5rem, 5rem);
  }

  span {
    display: block;
  }
}

h2 {
  font-size: 2rem;
  max-width: 400px;
}

.credit {
  font-family: Termina, sans-serif;
  a {
    color: var(--text-color);
  }
}

* {
  box-sizing: border-box;
}

#sectionPin {
  height: 100vh;
  overflow: hidden;
  display: flex;
  left: 0;
  background: var(--text-color);
  color: var(--bg-color);
}

.pin-wrap {
  height: 100vh;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  padding: 50px 10vw;

  & > * {
    min-width: 60vw;
    padding: 0 5vw;
  }
}

p {
  position: absolute;
  bottom: 10vw;
  right: 10vw;
  width: 200px;
  line-height: 1.5;
}
              
            
!

JS

              
                import { showDialog } from 'https://codepen.io/bramus/pen/ZEqMOLz/cccfe67c2b9cdfbeb5fb59083dbd0a64.js';
showDialog('https://scroll-driven-animations.style/demos/horizontal-section/waapi/');

// Alternative Versions:

// - CSS view-timeline 2022 + Polyfill: https://codepen.io/bramus/pen/dyeVmvg 
// - JS ScrollTimeline 2022 Syntax + Polyfill: https://codepen.io/bramus/pen/WNzZmdP 👈 = The version you are currently looking at
// - JS Motion One: https://codepen.io/bramus/pen/MWVvrEE
// - CSS @scroll-timeline: https://codepen.io/bramus/pen/QWGbOBQ
// - JS ScrollTimeline 2021 Syntax: https://codepen.io/bramus/pen/jOVWpyr

// The one from https://github.com/flackr/scroll-timeline/pull/74
import "https://raw.githack.com/flackr/scroll-timeline/22ae0525a8044a54e6d0aa593695b2a042e8de2a/dist/scroll-timeline.js";

const $sectionPin = document.querySelector("#sectionPin");
const $slidingContent = document.querySelector(".pin-wrap");

const sectionHeightInVh = 500; // 👈 The scrolling distance over which the horizontal section should slide across

// Adjust wrapper
// - Change height so that we have room to scroll in
// - Add fix to make position: sticky work
$sectionPin.style.height = `${sectionHeightInVh}vh`;
$sectionPin.style.overflow = `visible`;
// $sectionPin.style.outline = '10px solid red';

// Adjust content
// - Make it stick to the top
$slidingContent.style.position = "sticky";
$slidingContent.style.top = 0;

// Animate the slidingContent strip horizontally, while the sectionPin is contained
$slidingContent.animate(
	{
		transform: ["translateX(0)", `translateX(calc(-100% + 100vw))`]
	},
	{
		timeline: new ViewTimeline({
			subject: $sectionPin,
			axis: "block"
		}),
		fill: "forwards",
		delay: { phase: "contain", percent: CSS.percent(0) },
		endDelay: { phase: "contain", percent: CSS.percent(100) }
	}
);

              
            
!
999px

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