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HTML 

              
                .hero
  .hero__inner  
    div.hero__image(data-x="0.05" data-y="0.05" data-scale="1.05")
      img(src="https://assets.codepen.io/450456/layer-sky.jpg")
    div.hero__image.hero__image--sun(data-x="0.065" data-y="0.065" data-scale="1.1")
      img(src="https://assets.codepen.io/450456/layer-sunNoSparkle.png")
    div.hero__image.hero__image--sparkle(data-x="0.065" data-y="0.065" data-scale="1.1")
      img(src="https://assets.codepen.io/450456/layer-sunSparkle.png")
    div.hero__image( data-x="0.09" data-y="0.09" data-scale="1.15")
      img(src="https://assets.codepen.io/450456/layer-smallField.png")
    div.hero__image(data-x="0.13" data-y="0.13" data-scale="1.15")
      img(src="https://assets.codepen.io/450456/layer-bigField.png")
    div.hero__image.hero__image--leaf7(data-x="0.17" data-y="0.17" data-scale="1.19")
      img(src="https://assets.codepen.io/450456/layer-leaf7Trans.png")
    div.hero__image.hero__image--leaf6(data-x="0.22" data-y="0.22" data-scale="1.2")
      img(src="https://assets.codepen.io/450456/layer-leaf6Trans.png")
    div.hero__image(data-x="0.25" data-y="0.25" data-scale="1.2")
      img(src="https://assets.codepen.io/450456/layer-leaf5.png")
    div.hero__image.hero__image--leaf4(data-x="0.28" data-y="0.28" data-scale="1.22")
      img(src="https://assets.codepen.io/450456/layer-leaf4Trans.png")
    div.hero__image(data-x="0.3" data-y="0.3" data-scale="1.25")
      img(src="https://assets.codepen.io/450456/layer-leaf3.png")
    div.hero__image.hero__image--leaf2(data-x="0.2" data-y="0.2" data-scale="1.18")
      img(src="https://assets.codepen.io/450456/layer-leaf2Trans.png")
    div.hero__image.hero__image--leaf1(data-x="0.28" data-y="0.28" data-scale="1.25")
      img(src="https://assets.codepen.io/450456/layer-leaf1Trans.png")
!

CSS 

              
                html {
  background: #0c0f16;
}

.hero {
  width: 100%;
  position: relative;
  
  &::after {
    content: "";
    position: absolute;
    z-index: 2;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, transparent, #0c0f16);
  }
  
  &__inner {
    position: relative;
    overflow: hidden;
    padding-top: 62.51%;
    background: green;
    
    &::before {
      content: "";
      position: absolute;
      z-index: 2;
      top: 0;
      left: 0;
      bottom: 0;
      right: 0;
      background: #0c0f16;
      animation: intro 1s forwards;
    }
  }
  
  &__image {
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    // transition: all 100ms;
    
    img {
      width: 100%;
      position: relative;
    }
    
    &--sun {
      animation: sunrise 1.5s forwards;
      // animation-delay: 1s;
    }
    
    &--sparkle {
      animation: sparkle 6s infinite;
    }
    
    &--leaf1 {
      &::before {
        content: "";
        position: absolute;
        top: 13.9%;
        left: 2.5%;
        width: 18%;
        height: 13.5%;
        transform: rotate(135deg);
        background: linear-gradient(to left, #00ed8a 0%, #00ed8a 60%, white 80%, #00ed8a 100%);
        background-size: 200% 200%;
        animation: pulse 4s infinite;
      }
    }
    
    &--leaf2 {
      &::before {
        content: "";
        position: absolute;
        top: 45.5%;
        left: 6.5%;
        width: 18%;
        height: 13.5%;
        transform: rotate(46deg);
        background: linear-gradient(to left, #00ed8a 0%, #00ed8a 60%, white 80%, #00ed8a 100%);
        background-size: 200% 200%;
        animation: pulse 4s infinite;
        animation-delay: 2s;
        clip-path: polygon(11% 45%, 21% 14%, 28% 0, 100% 0, 100% 100%, 30% 100%, 21% 85%, 18% 73%);
      }
    }
    
    &--leaf4 {
      &::before {
        content: "";
        position: absolute;
        top: 85.9%;
        left: 20.5%;
        width: 22%;
        height: 13.5%;
        transform: rotate(125deg);
        background: linear-gradient(to left, #00ed8a 0%, #00ed8a 60%, white 80%, #00ed8a 100%);
        background-size: 200% 200%;
        animation: pulse 4s infinite;
        animation-delay: 1s;
      }
    }
    
    &--leaf6 {
      &::before {
        content: "";
        position: absolute;
        top: 26.5%;
        left: 71.5%;
        width: 18%;
        height: 13.5%;
        transform: rotate(27deg);
        background: linear-gradient(to left, #00ed8a 0%, #00ed8a 60%, white 80%, #00ed8a 100%);
        background-size: 200% 200%;
        animation: pulse 4s infinite;
      }
    }
    
    &--leaf7 {
      &::before {
        content: "";
        position: absolute;
        top: 62%;
        left: 78.8%;
        width: 17%;
        height: 13.5%;
        transform: rotate(125deg);
        clip-path: ellipse(50% 50% at 50% 50%);
        background: linear-gradient(to left, #00ed8a 0%, #00ed8a 60%, white 80%, #00ed8a 100%);
        background-size: 200% 200%;
        animation: pulse 4s infinite;
        animation-delay: 1s;
      }
    }
  }
}

@keyframes pulse {
  0%{background-position:0% 0%}
  50%{background-position:280% 280%}
  100%{background-position:0% 0%}
}

@keyframes sparkle {
  0%,
  30%,
  90%,
  100% {
    opacity: 0;
    clip-path: polygon(54.2% 42%, 54.2% 42%, 54.2% 42%, 54.2% 42%);
  }
  40%,
  80% {
    opacity: 0.9;
    clip-path: polygon(50% 35%, 60% 35%, 60% 50%, 50% 50%);
  }
  50% {
    opacity: 1;
    clip-path: polygon(50% 35%, 60% 35%, 60% 50%, 50% 50%);
  }
}

@keyframes intro {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

@keyframes sunrise {
  0% {
    transform: translateY(100%) scale(1.1);
  }
  80% {
    transform: translateY(-1%) scale(1.1);
  }
  100% {
    transform: translateY(0) scale(1.1);
  }
}
!

JS 

              
                const layers = document.querySelectorAll('.hero__image');

document.querySelector('.hero').addEventListener('mousemove',parallaxHero);
document.querySelector('.hero').addEventListener('touchmove',parallaxHero);

// apply initial scales
layers.forEach(function(layer, index){
  const scale = parseFloat(layer.dataset.scale);
  layer.style.transform = 'scale('+scale+')';
});

function parallaxHero(e){
  const mouseX = e.type.includes('touch') ? e.touches[0].clientX : e.clientX;
  const mouseY = e.type.includes('touch') ? e.touches[0].clientY : e.clientY;
  const heroH = this.offsetHeight;
  const heroW = this.offsetWidth;
  const heroMidX = this.offsetLeft + (heroW / 2);
  const heroMidY = this.offsetTop + (heroH / 2);
  const diffX = heroMidX - mouseX;
  const diffY = heroMidY - mouseY;
  
  layers.forEach(function(layer, index){
    const ratioX = parseFloat(layer.dataset.x);
    const ratioY = parseFloat(layer.dataset.y);
    const scale = parseFloat(layer.dataset.scale);
    const minScale = ((scale - 1) / 2);
    
    const minX = heroW * minScale;
    const minY = heroH * minScale;
    
    const maxX = - (heroW * minScale);
    const maxY = - (heroH * minScale);
    
    const moveX = Math.max(maxX,Math.min(minX,ratioX * diffX));
    const moveY = Math.max(maxY,Math.min(minY,ratioY * diffY));
    
    layer.style.left = moveX+'px';
    layer.style.top = moveY+'px';
    layer.style.transform = 'scale('+scale+')';
  });
}
!
999px

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