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HTML

              
                mixin cuboid()
  .cuboid(class!=attributes.class)
    - let s = 0
    while s < 6
      .cuboid__side
      - s++

mixin block(delay)
  .stacked__block(style=`--delay: ${delay}`)
    .block
      +cuboid()(class="cuboid--block")

//- img(src="https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Fassets.wired.com%2Fphotos%2Fw_1904%2Fwp-content%2Fuploads%2F2016%2F07%2Fso-logo-s.jpg&f=1&nofb=1")
.scene
  .stacked
    .stacked__tray.tray
      .tray__side.tray__side--bottom
        +cuboid()(class="cuboid--tray")
      .tray__side.tray__side--left
        +cuboid()(class="cuboid--tray")
      .tray__side.tray__side--right
        +cuboid()(class="cuboid--tray")
    .stacked__stack
      +block(0)
      +block(1)
      +block(2)
      +block(3)
      +block(4)
              
            
!

CSS

              
                .cuboid
  width 100%
  height 100%
  position relative
  // 1 is the top and go t, r, b, l, f, b

  &__side:nth-of-type(1)
    height calc(var(--thickness) * 1vmin)
    width 100%
    position absolute
    top 0
    transform translate(0, -50%) rotateX(90deg)

  &__side:nth-of-type(2)
    height 100%
    width calc(var(--thickness) * 1vmin)
    position absolute
    top 50%
    right 0
    transform translate(50%, -50%) rotateY(90deg)

  &__side:nth-of-type(3)
    width 100%
    height calc(var(--thickness) * 1vmin)
    position absolute
    bottom 0
    transform translate(0%, 50%) rotateX(90deg)

  &__side:nth-of-type(4)
    height 100%
    width calc(var(--thickness) * 1vmin)
    position absolute
    left 0
    top 50%
    transform translate(-50%, -50%) rotateY(90deg)

  &__side:nth-of-type(5)
    height 100%
    width 100%
    transform translate3d(0, 0, calc(var(--thickness) * 0.5vmin))
    position absolute
    top 0
    left 0

  &__side:nth-of-type(6)
    height 100%
    width 100%
    transform translate3d(0, 0, calc(var(--thickness) * -0.5vmin)) rotateY(180deg)
    position absolute
    top 0
    left 0

*
*:after
*:before
  box-sizing border-box
  transform-style preserve-3d

body
  min-height 100vh
  display grid
  place-items center
  background var(--bg)
  overflow hidden

:root
  --bg hsl(240, 24%, 12%)
  --speed 6
  --delay-coefficient -1.2s
  --b-1 hsl(27, 80%, 52%)
  --b-2 hsl(27, 80%, 48%)
  --b-3 hsl(27, 80%, 45%)
  --b-4 hsl(27, 80%, 40%)
  --t-1 hsl(35, 10%, 50%)
  --t-2 hsl(35, 10%, 40%)
  --t-3 hsl(35, 10%, 30%)
  --t-4 hsl(35, 10%, 20%)

img
  opacity 0.25
  position fixed
  height 50vmin
  top 50%
  left 50%
  transform translate(-47.25%, -50%)

.scene
  position fixed
  top 50%
  left 50%
  transform translate3d(-50%, -50%, 100vmin) rotateX(-24deg) rotateY(34deg) rotateX(calc(var(--rotate-x, 0) * 1deg)) rotateY(calc(var(--rotate-y, 0) * 1deg))

.stacked
  height 50vmin
  width 33vmin
  position fixed
  top 50%
  left 50%
  transform translate(-50%, -50%)

  &__tray
    position absolute
    bottom 9%
    left 50%
    height 15vmin
    width 33vmin
    transform translate(-50%, 0%)

  &__stack
    position absolute
    bottom 23.5%
    left 50%
    height 7.5%
    width 55%
    transform translate(-50%, 0)

  &__block
    height 100%
    width 100%
    position absolute
    animation stack calc(var(--speed, 0) * 1s) calc(var(--delay, 0) * var(--delay-coefficient)) infinite ease-in reverse

.tray
  &__side
    position absolute

    &--bottom
      bottom 0
      left 0
      right 0
      height 24%

      .cuboid div:nth-of-type(1):after
        content ''
        height 24vmin
        width 50%
        position absolute
        background radial-gradient(hsla(0, 0%, 25%, 0.3) 75%, transparent)
        filter blur(1vmin)
        top 50%
        left 50%
        animation strong calc(var(--delay-coefficient) * -1) infinite
        transform translate(-50%, -50%)

        @keyframes strong
          0%, 100%
            opacity 0.5
          50%
            opacity 1

    &--left
      left 0
      width 11%
      height 100%

    &--right
      right 0
      width 11%
      height 100%

.block
  animation drop calc(var(--speed, 0) * 1s) calc(var(--delay, 0) * var(--delay-coefficient)) infinite ease-out reverse
  transform-origin 75% 50%
  height 100%
  width 100%
  position absolute

.cuboid--block div
    animation fade calc(var(--speed, 0) * 1s) calc(var(--delay, 0) * var(--delay-coefficient)) infinite ease-in-out

@keyframes stack
  to
    transform translate(58%, 0)
@keyframes drop
  to
    transform translate(0, -560%) rotate(54deg)

@keyframes fade
  0%, 100%
    opacity 0
  10%, 90%
    opacity 1

.cuboid
  &--tray
    --thickness 33
    div
      &:nth-of-type(1)
        background var(--t-1)
      &:nth-of-type(2)
        background var(--t-2)
      &:nth-of-type(3)
        background var(--t-2)
      &:nth-of-type(4)
        background var(--t-4)
      &:nth-of-type(5)
        background var(--t-3)
      &:nth-of-type(6)
        background var(--t-2)

  &--block
    --thickness 24

    div
      &:nth-of-type(1)
        background var(--b-1)

        &:after
          content ''
          position absolute
          top 0
          right 0
          bottom 0
          left 0
          background radial-gradient(hsla(35, 80%, 20%, 0.4) 75%, transparent)
          filter blur(1vmin)
          animation fadeOver calc(var(--speed, 0) * 1s) calc(var(--delay, 0) * var(--delay-coefficient)) infinite ease-in-out

          @keyframes fadeOver
            0%, 20%, 100%
              opacity 0
            30%, 90%
              opacity 1


      &:nth-of-type(2)
        background var(--b-2)
      &:nth-of-type(3)
        background var(--b-4)
      &:nth-of-type(4)
        background var(--b-2)
      &:nth-of-type(5)
        background var(--b-3)
      &:nth-of-type(6)
        background var(--b-2)
              
            
!

JS

              
                import gsap from 'https://cdn.skypack.dev/gsap'

const BOUNDS = 50
document.addEventListener('pointermove', ({ x, y }) => {
  const newX = gsap.utils.mapRange(0, window.innerWidth, -BOUNDS, BOUNDS, x)
  const newY = gsap.utils.mapRange(0, window.innerHeight, BOUNDS, -BOUNDS, y)
  gsap.set(document.documentElement, {
    '--rotate-x': newY,
    '--rotate-y': newX,
  })
})
              
            
!
999px

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