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CSS

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HTML 

              
                <section class="box-hero">
  <div class="box-hero_copy">
    <h1 class="h1">Top #1 Real Estate Seller Agent in Miami Beach</h1>
    <p class="h4">
      Take advantage of experience — sell your home today for more
    </p>
    <div>
      <a href="#link" class="btn">Scroll to Begin</a>
    </div>

  </div>
  <div class="box-hero_img">

  </div>
  <div class="background"></div>
</section>

<section class="box-intro">
  <div class="box-intro_copy">
    <h2 class="h1">Lorem Ipsum best not make any more threats to your website</h2>
    <p class="h4">
      Lorem ipsum dolor sit amet, consectetur adipiscing elit
    </p>
  </div>
</section>
<div class="spacer"></div>
!

CSS 

              
                * {
  box-sizing: border-box;
}

body {
  margin: 0;
}

.box-hero {
  width: 100%;
  height: 100vh;
  position: relative;
  z-index: 5;
  visibility: visible;
  background: #000;
  transition: opacity 0.5s;
}
.box-hero_img {
  width: 100%;
  height: 100%;
  position: fixed !important;
  top: 0;
  z-index: 0;
  transition: opacity 0.5s;
  background-image: url("https://picsum.photos/1600/800/");
  background-repeat: no-repeat;
  background-size: cover;
  opacity: 0.6;
}
.box-hero_copy {
  position: absolute;
  width: 100%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  color: #fff;
  padding: 3rem 1rem;
  max-width: 960px;
  text-align: center;
}
.h1 {
  font-size: 56px;
}
.h4 {
  font-size: 20px;
}
.box-hero .background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  z-index: -1;
}
.btn {
  padding: 0.75rem;
  border-radius: 1000px;
  color: #000;
  background: lightgray;
  width: 140px;
  margin: auto;
  font-size: 1rem;
  display: block;
  text-decoration: none;
  margin-top: 2rem;
}

.box-intro {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #fff;
  width: 100%;
  height: 100vh;
  top: 0 !important;
  z-index: 4;
  background: rgba(0, 0, 0, 0.4);
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.5s;
}

.box-intro_copy {
  max-width: 960px;
}

.spacer {
  width: 100%;
  height: 100vh;
  background: coral;
}
!

JS 

              
                console.clear();

// gsap.to()... infinity and beyond!
// For more check out greensock.com
gsap.registerPlugin(ScrollTrigger);

const hero = document.querySelector(".box-hero");
const boxIntro = document.querySelector(".box-intro");
const introText = document.querySelector(".box-intro_copy");

const tl = gsap.timeline();

tl.to(hero, {
  autoAlpha: 0,
  duration: 1 // Adjust the duration for the fade-out effect
});

tl.fromTo(
  boxIntro,
  {
    autoAlpha: 0,
    background: "transparent"
  },
  {
    autoAlpha: 1,
    background: "#43474c",
    duration: 1 // Adjust the duration for the fade-in effect
  },
  "-=1.5"
); // Delay the fade-in effect slightly

ScrollTrigger.create({
  animation: tl,
  trigger: ".box-intro",
  start: "top center",
  end: "top top",
  scrub: true,
  onUpdate: (self) => {
    // Adjust the autoAlpha of section 1 based on the scroll position
    hero.style.visibility = self.progress === 0.5 ? "hidden" : "visible";
    hero.style.zIndex = self.progress === 1 ? "-5" : "5";

    // Adjust the autoAlpha of section 2 based on the scroll position
    boxIntro.style.opacity = self.progress === 0.5 ? 0 : 1;
    boxIntro.style.zIndex = self.progress === 1 ? "4" : "4";
  }
});

gsap.set(introText, { opacity: 0, ease: "power1.out" });

// ScrollTrigger.create({
//   trigger: boxIntro,
//   start: "top top",
//   endTrigger: introText,
//   end: "+=50%",
//   markers: true,
//   pin: true,
//   pinSpacing: false,
//   onEnter: () => {
//     gsap.to(introText, { opacity: 1, duration: 0.5 });
//   },
//   onLeaveBack: () => {
//     gsap.to(introText, { opacity: 0, duration: 0.5 });
//   }
// });
!
999px

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