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CSS

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HTML 

              
                //- Front
//- Back
//- Right
//- Left
//- Top
//- Bottom
mixin cuboid(className)
  .cuboid(class=className)
    - let s = 0
    while s < 6
      .cuboid__side
      - s++
.scene
  //- Plane that all the 3D stuff sits on
  .plane
    +cuboid('plant-pot')
    .plant
      img(src="https://assets.codepen.io/605876/plant-leaves-large.png")
      img(src="https://assets.codepen.io/605876/plant-leaves-large.png")
      img(src="https://assets.codepen.io/605876/plant-leaves-large.png")
      img(src="https://assets.codepen.io/605876/plant-leaves-large.png")
      img(src="https://assets.codepen.io/605876/plant-leaves-large.png")
!

CSS 

              
                *
  box-sizing border-box
  transform-style preserve-3d

:root
  --perspective 1200
  --rotate-x -15
  --rotate-y -40
  --pot-one hsl(30, 60%, 35%)
  --pot-two hsl(30, 60%, 25%)
  --pot-three hsl(30, 60%, 15%)

body
  min-height 100vh
  // overflow hidden
  background hsl(0, 0%, 90%)

.scene
  perspective calc(var(--perspective, 800) * 1px)
  transform-style preserve-3d
  height 100vh
  width 100vw
  display flex
  align-items center
  justify-content center

.plane
  height calc(var(--plane-height, 25) * 1vmin)
  width calc(var(--plane-width, 25) * 1vmin)
  transform-style preserve-3d
  transform rotateX(calc(var(--rotate-x, -24) * 1deg)) rotateY(calc(var(--rotate-y, -24) * 1deg)) rotateX(90deg) translate3d(0, 0, 0)


// This is what makes the CSS variable powered cuboid
.cuboid
  --width var(--cuboid-width, 15)
  --height var(--cuboid-height, 10)
  --depth var(--cuboid-depth, 4)
  height calc(var(--depth) * 1vmin)
  width calc(var(--width) * 1vmin)
  position absolute
  transform translate3d(calc(var(--x, 0) * 1vmin), calc(var(--y, 0) * 1vmin), calc(var(--z, 0) * 1vmin)) rotateX(calc(var(--rotate-cuboid-x, 0) * 1deg)) rotateY(calc(var(--rotate-cuboid-y, 0) * 1deg)) rotateZ(calc(var(--rotate-cuboid-z, 0) * 1deg))
  transform-style preserve-3d

  &__side
    transform-style preserve-3d

  & > div:nth-of-type(1)
    height calc(var(--height) * 1vmin)
    width 100%
    transform-origin 50% 50%
    transform rotateX(-90deg)
    position absolute
    top 50%
    left 50%
    transform translate(-50%, -50%) rotateX(-90deg) translate3d(0, 0, calc((var(--depth) / 2) * 1vmin))

  & > div:nth-of-type(2)
    height calc(var(--height) * 1vmin)
    width 100%
    transform-origin 50% 50%
    transform translate(-50%, -50%) rotateX(-90deg) rotateY(180deg) translate3d(0, 0, calc((var(--depth) / 2) * 1vmin))
    position absolute
    top 50%
    left 50%

  & > div:nth-of-type(3)
    height calc(var(--height) * 1vmin)
    width calc(var(--depth) * 1vmin)
    transform translate(-50%, -50%) rotateX(-90deg) rotateY(90deg) translate3d(0, 0, calc((var(--width) / 2) * 1vmin))
    position absolute
    top 50%
    left 50%

  & > div:nth-of-type(4)
    height calc(var(--height) * 1vmin)
    width calc(var(--depth) * 1vmin)
    transform translate(-50%, -50%) rotateX(-90deg) rotateY(-90deg) translate3d(0, 0, calc((var(--width) / 2) * 1vmin))
    position absolute
    top 50%
    left 50%

  & > div:nth-of-type(5)
    height calc(var(--depth) * 1vmin)
    width calc(var(--width) * 1vmin)
    transform translate(-50%, -50%) translate3d(0, 0, calc((var(--height) / 2) * 1vmin))
    position absolute
    top 50%
    left 50%

  & > div:nth-of-type(6)
    height calc(var(--depth) * 1vmin)
    width calc(var(--width) * 1vmin)
    transform translate(-50%, -50%) translate3d(0, 0, calc((var(--height) / 2) * -1vmin)) rotateX(180deg)
    position absolute
    top 50%
    left 50%

.plant-pot
  --width 10
  --depth 10
  --height 10
  top 50%
  left 50%
  transform translate(-50%, -50%)

.plant-pot div
  background var(--pot-one)

  &:nth-of-type(1)
    background var(--pot-three)
  &:nth-of-type(3)
    background var(--pot-two)

  &:nth-of-type(5)
    border 1.5vmin solid var(--pot-one)
    background #111

.plant
  height 6vmin
  width 6vmin
  position absolute
  top 50%
  left 50%
  transform translate3d(-50%, -50%, 5vmin)

  img
    position absolute
    left 50%
    bottom 0
    height calc(var(--height, 15) * 1vmin)
    width 12vmin
    transform-origin 50% 100%
    transform translate(-50%, 0) rotateX(-90deg) translate3d(0, 0, -3vmin) rotateY(calc(var(--rotate, 0) * 1deg))

    &:nth-of-type(1)
      --height 15
      --rotate 0
    &:nth-of-type(2)
      --height 10
      --rotate 45
    &:nth-of-type(3)
      --height 20
      --rotate 120
    &:nth-of-type(4)
      --height 30
      --rotate 75
    &:nth-of-type(5)
      --height 5
      --rotate 10
!

JS 

              
                // Purely for debugging purposes
const {
  dat: { GUI },
} = window

const CONTROLLER = new GUI()
const CONFIG = {
  'rotate-x': -24,
  'rotate-y': -40,
}
const UPDATE = () => {
  Object.entries(CONFIG).forEach(([key, value]) => {
    document.documentElement.style.setProperty(`--${key}`, value)
  })
}
const PLANE_FOLDER = CONTROLLER.addFolder('Plane')
PLANE_FOLDER.add(CONFIG, 'rotate-x', -360, 360, 1)
  .name('Rotate X (deg)')
  .onChange(UPDATE)
PLANE_FOLDER.add(CONFIG, 'rotate-y', -360, 360, 1)
  .name('Rotate Y (deg)')
  .onChange(UPDATE)
UPDATE()
!
999px

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