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HTML 

              
                <h1>Animations + ScrollTrigger</h1>
<section class="page-content">
  <h2>PAGE CONTENT</h2>
  <p>
    Maecenas finibus pharetra ipsum, eu facilisis ex ultrices a. Ut gravida justo eu metus fermentum, in gravida nisi ullamcorper. Maecenas et mi id nisl dignissim finibus.
  </p>
</section>

<section class="animated-hero-wrapper">

  <div id="animatedHero" ref="animatedHero" class="animated-hero-container">

    <div ref="animatedHeroColumnCornerLeft" class="animated-hero-corner-left">
      <div class="animated-hero-corner"></div>
    </div>
    <div ref="animatedHeroColumnLeft" class="animated-hero-column-left">
      <div class="animated-hero-column animated-hero-column__top"></div>
      <div class="animated-hero-column animated-hero-column__bottom"></div>
    </div>

    <figure style="display: flex" ref="heroVideo" class="animated-hero-video">
      <video ref="heroVideoPlayer" class="animated-hero-video__player" src="https://videos.pexels.com/video-files/7279180/7279180-sd_960_406_25fps.mp4" playsinline="true" webkit-playsinline="true" preload="auto" muted="muted" autoplay="autoplay" loop="loop">
      </video>
    </figure>

    <div ref="animatedHeroColumnRight" class="animated-hero-column-right">
      <div class="animated-hero-column animated-hero-column__top"></div>
      <div class="animated-hero-column animated-hero-column__bottom"></div>
    </div>
    <div ref="animatedHeroColumnCornerRight" class="animated-hero-corner-right">
      <div class="animated-hero-corner"></div>
    </div>

  </div>

</section>







<section class="page-content">
  <h2>OTHER PAGE CONTENT</h2>
  <p>
    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque hendrerit pretium nunc, elementum gravida mi tempus id. Donec eu quam in lorem elementum aliquet quis ac nulla. In ac tellus aliquet, scelerisque felis porttitor, tristique tellus. Nam scelerisque risus mauris, id iaculis massa eleifend eu. Nam neque lectus, euismod vel nisi non, sollicitudin eleifend enim.
  </p>
  <p>
    Maecenas finibus pharetra ipsum, eu facilisis ex ultrices a. Ut gravida justo eu metus fermentum, in gravida nisi ullamcorper. Maecenas et mi id nisl dignissim finibus.
  </p>
  <p>
    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque hendrerit pretium nunc, elementum gravida mi tempus id. Donec eu quam in lorem elementum aliquet quis ac nulla. In ac tellus aliquet, scelerisque felis porttitor, tristique tellus. Nam scelerisque risus mauris, id iaculis massa eleifend eu. Nam neque lectus, euismod vel nisi non, sollicitudin eleifend enim.
  </p>
  <p>
    Maecenas finibus pharetra ipsum, eu facilisis ex ultrices a. Ut gravida justo eu metus fermentum, in gravida nisi ullamcorper. Maecenas et mi id nisl dignissim finibus.
  </p>

  <h2>OTHER CONTENT</h2>
  <p>
    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque hendrerit pretium nunc, elementum gravida mi tempus id. Donec eu quam in lorem elementum aliquet quis ac nulla. In ac tellus aliquet, scelerisque felis porttitor, tristique tellus. Nam scelerisque risus mauris, id iaculis massa eleifend eu. Nam neque lectus, euismod vel nisi non, sollicitudin eleifend enim.
  </p>
  <p>
    Maecenas finibus pharetra ipsum, eu facilisis ex ultrices a. Ut gravida justo eu metus fermentum, in gravida nisi ullamcorper. Maecenas et mi id nisl dignissim finibus.
  </p>
  <p>
    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque hendrerit pretium nunc, elementum gravida mi tempus id. Donec eu quam in lorem elementum aliquet quis ac nulla. In ac tellus aliquet, scelerisque felis porttitor, tristique tellus. Nam scelerisque risus mauris, id iaculis massa eleifend eu. Nam neque lectus, euismod vel nisi non, sollicitudin eleifend enim.
  </p>
  <p>
    Maecenas finibus pharetra ipsum, eu facilisis ex ultrices a. Ut gravida justo eu metus fermentum, in gravida nisi ullamcorper. Maecenas et mi id nisl dignissim finibus.
  </p>
</section>
!

CSS 

              
                :root {
  --videoInitialTop: 12%;
  --columnsLeftRightInitialTop: 15%;
  --cornersInitialTop: 18%;
}

body {
  font-family: Avenir, sans-serif;
  background-color: #0e100f;
  color: #fffce1;
}

.animated-hero-wrapper {
  position: relative;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  width: 100%;
  max-width: 100%;
  height: 300vh;
  min-height: 300px;
  margin: 0;
  margin-bottom: 60px;
  padding: 0;

  overflow: hidden;
  
  .animated-hero-container {
    width: 100%;
  }
}

figure.animated-hero-video {
  aspect-ratio: 16 / 9;
  position: relative;
  top: var(--videoInitialTop);
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
}

.animated-hero-video__player {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  width: 100%;
  height: auto;
  min-width: 100%;
  min-height: 100%;

  clip-path: inset(0 40% 0 40%);
}

/* aspect ratios */
.animated-hero-corner {
  aspect-ratio: 1 / 1;
}
.animated-hero-column {
  &__top {
    aspect-ratio: 4 / 3;
  }
  &__bottom {
    aspect-ratio: 1 / 1;
  }
}

/** Left side of hero **/
.animated-hero-corner-left {
  position: absolute;
  top: var(--cornersInitialTop);
  left: -25%;
  width: 36%;
  height: 200px;
}

.animated-hero-column-left {
  display: flex;
  flex-direction: column;
  gap: 30px;
  position: absolute;
  top: var(--columnsLeftRightInitialTop);
  left: 15%;
  width: 20%;
}

/** Right side of hero **/
.animated-hero-corner-right {
  position: absolute;
  top: var(--cornersInitialTop);
  right: -10%;
  width: 20%;
  height: 200px;
}

.animated-hero-column-right {
  display: flex;
  flex-direction: column;
  // height: 50%;
  gap: 30px;
  position: absolute;
  top: var(--columnsLeftRightInitialTop);
  right: 15%;
  width: 20%;
}

/** Shared classes **/
.animated-hero-column {
  &:nth-child(odd) {
    height: 60%;
    background-color: rgb(71, 71, 239);
  }
  &:nth-child(even) {
    height: 40%;
    background-color: rgb(244, 176, 48);
  }

  > img {
    object-fit: cover;
    width: 100%;
    height: auto;
    min-width: 100%;
    min-height: 100%;
  }
}

.animated-hero-corner {
  width: 100%;
  height: 100%;
  background-color: rgb(237, 48, 48);
}

h1,
.page-content {
  // display: none;
  padding: 20px 40px;
}
!

JS 

              
                const animatedHeroContainer = ".animated-hero-container";
const animatedHeroCornerLeft = ".animated-hero-corner-left";
const animatedHeroColumnLeft = ".animated-hero-column-left";
const animatedHeroVideoPlayer = ".animated-hero-video__player";
const animatedHeroColumnRight = ".animated-hero-column-right";
const animatedHeroCornerRight = ".animated-hero-corner-right";

const SQUARES_UP_DURATION = 1.2;
const SQUARES_ANIM_DURATION = 2;
const VIDEO_PIN_DURATION = 1.5;

const tl = gsap.timeline({
  scrollTrigger: {
    id: "box",
    trigger: ".animated-hero-container",
    start: "top top",
    end: "+=1500",
    scrub: 1
    //markers: {
    // 	startColor: 'green',
    // 	endColor: 'orange',
    // 	fontSize: '2.5rem',
    // },
  }
});

// Side-squares - up animation
tl.to(
  animatedHeroCornerLeft,
  {
    yPercent: -120,
    ease: "none",
    duration: SQUARES_UP_DURATION
  },
  0
);
tl.to(
  animatedHeroColumnLeft,
  {
    yPercent: -55,
    ease: "none",
    duration: SQUARES_UP_DURATION
  },
  0
);

tl.to(
  animatedHeroCornerRight,
  {
    yPercent: -120,
    ease: "none",
    duration: SQUARES_UP_DURATION
  },
  0
);
tl.to(
  animatedHeroColumnRight,
  {
    yPercent: -55,
    ease: "none",
    duration: SQUARES_UP_DURATION
  },
  0
);

// Side-squares - side animation
tl.to(
  animatedHeroCornerLeft,
  { left: "-60%", duration: SQUARES_ANIM_DURATION, ease: "none" },
  SQUARES_UP_DURATION
);
tl.to(
  animatedHeroColumnLeft,
  { left: "-30%", duration: SQUARES_ANIM_DURATION, ease: "none" },
  SQUARES_UP_DURATION
);
tl.to(
  animatedHeroColumnRight,
  { right: "-30%", duration: SQUARES_ANIM_DURATION, ease: "none" },
  SQUARES_UP_DURATION
);
tl.to(
  animatedHeroCornerRight,
  { right: "-60%", duration: SQUARES_ANIM_DURATION, ease: "none" },
  SQUARES_UP_DURATION
);

/*
 * VIDEO
 */

const tlVideoUp = gsap.timeline({
  scrollTrigger: {
    id: "v-up",
    trigger: ".animated-hero-container",
    start: "top top",
    end: "+=450",
    scrub: 1
  }
});

// Video - up animation
tlVideoUp.to(".animated-hero-video__player", { y: -460, duration: 1.5 }, 0);

const tlVideo = gsap.timeline({
  scrollTrigger: {
    id: "video",
    trigger: ".animated-hero-container",
    pin: true,
    start: "top top",
    end: "+=1360",
    scrub: 1,
    markers: {
      startColor: "green",
      endColor: "orange",
      fontSize: "2.5rem"
    }
  }
});

// Video - expand animation
tlVideo.from(
  ".animated-hero-video__player",
  {
    clipPath: "inset(0 40% 0 40%)",
    ease: "none",
    duration: SQUARES_ANIM_DURATION,
  },
  VIDEO_PIN_DURATION
);

tlVideo.to(
  ".animated-hero-video__player",
  {
    clipPath: "inset(0% 0%)",
    ease: "none",
    duration: SQUARES_ANIM_DURATION,
  },
  VIDEO_PIN_DURATION
);

/* end: () =>
        `+=${
          document.querySelector(".animated-hero-video").offsetHeight *
          VIDEO_PIN_DURATION
        }`,
      */
!
999px

Console