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HTML 

              
                .switch
  .body
  .grip
    .power-leds
      .led
      .led
      .led
      .led
  .tablet
    .tablet__frame
      .tablet__screen
        .logo
  .joycon.joycon--left
    .joycon__sign.joycon__sign--minus
    .joycon__stick.joycon__stick--left
      .joycon__stickCenter
    .joycon__cross.joycon__cross--left
      button.joycon__button.joycon__button--top
        .arrow.arrow--up
      button.joycon__button.joycon__button--left
        .arrow.arrow--left
      button.joycon__button.joycon__button--right
        .arrow.arrow--right
      button.joycon__button.joycon__button--bottom
        .arrow.arrow--down
    .joycon__options.joycon__options--capture
  .joycon.joycon--right
    .joycon__sign.joycon__sign--plus
    .joycon__stick.joycon__stick--right
      .joycon__stickCenter
    .joycon__cross.joycon__cross--right
      button.joycon__button.joycon__button--top
        .letter
          ="X"
      button.joycon__button.joycon__button--left
        .letter
          ="Y"
      button.joycon__button.joycon__button--right
        .letter
          ="A"
      button.joycon__button.joycon__button--bottom
        .letter
          ="B"
    .joycon__options.joycon__options--home
!

CSS 

              
                // Utilities
$area-width: 90vmin; // Responsive awesomeness!
$border-width: 0.005em;
$offset: .25em;

// Colours
$bg: #f5d76f;
$left-joycon: #5dc0e0;
$right-joycon: #e77366;
$shadow: rgba(0,0,0, .1);
$highlight: rgba(255,255,255, .5);
$black: #2c2b28;
$dark-grey: #403e41;
$grey: #515056;
$light-grey: #6b6b6d;
$white: #c8c9cc;

// Uncomment the block below for "boring grey" Joy-cons
/*
$left-joycon: #6b6b6d;
$right-joycon: #6b6b6d;
//*/

*,
*::before,
*::after { // Styling the borders here makes it easier down the road for a consistent look
  box-sizing: border-box;
  border-color: #{$black};
  border-style: solid;
  border-width: 0;
}

html,
body {
  height: 100%;
  font-size: 16px;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-family: Helvetica, Arial, sans-serif;
  background-color: $bg;
  background-image: linear-gradient(42deg, rgba(0,0,0,.25), rgba(255,255,255,.25));
  background-attachment: fixed;
  overflow: hidden;
}

.switch {
  position: relative;
  width: 1em;
  height: .4372em;
  font-size: $area-width;
}

.body {
  position: absolute;
  left: 13.75%;
  top: 2%;
  bottom: 0;
  width: 72.5%;
  border-width: #{$border-width};
  background-color: #{$grey};
}

.joycon {
  position: absolute;
  top: 0;
  width: 14.45%;
  height: 100%;
  border-width: #{$border-width};
  box-shadow:
    inset 0  .005em 0 #{$shadow},
    inset 0 -.01em  0 #{$shadow},
    inset 0 -.03em  0 #{$shadow};
  animation: joyconSnap .75s ease-out backwards 1;
  
  &--left {
    left: 0;
    background-color: $left-joycon;
    border-radius: 0.0875em 0 0 0.0875em;
    animation-delay: -.25s;
  }
  
  &--right {
    right: 0;
    background-color: $right-joycon;
    border-radius: 0 0.0875em 0.0875em 0;
  }
  
  &__sign {
    position: absolute;
    top: .0325em;
    width: .02em;
    height: .005em;
    background: $black;
    
    &--minus {
      right: .01em;
    }

    &--plus {
      position: absolute;
      left: .01em;

      &::after {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        background: inherit;
        transform: rotate(90deg);
      }
    }
  }
  
  &__stick {
    position: absolute;
    width: .07377em;
    height: .07377em;
    border-width: #{$border-width};
    border-radius: 50%;
    background-color: $light-grey;
    box-shadow: .005em -.005em 0 .0025em #{$shadow};
    
    &::before,
    &::after {
      content: '';
      position: absolute;
      left: calc(50% - #{$border-width/2});
      top: 0;
      width: $border-width;
      height: 100%;
      background-color: $black;
    }
    
    &::after {
      transform: rotate(90deg);
    }
    
    &--left {
      left: .035em;
      top: .07377em;
    }
    
    &--right {
      right: .035em;
      top: .1913em;
    }
  }
  
  &__stickCenter {
    position: absolute;
    left: 10%;
    top: 10%;
    width: 80%;
    height: 80%;
    border-width: #{$border-width};
    border-radius: 50%;
    background-color: $light-grey;
    box-shadow: inset #{$border-width/2} -#{$border-width/2} 0 #{$highlight};
    z-index: 1; // To pass the element over the parent's ::after
  }
  
  &__cross {
    position: absolute;
    width: .0875em;
    height: .0875em;
    transform: rotate(45deg);
    
    &--left {
      right: .02em;
      top: .183em;
    }
    
    &--right {
      left: .02em;
      top: .0656em;
    }
  }
  
  &__button {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    width: .038em;
    height: .038em;
    border-width: $border-width;
    border-radius: 50%;
    box-shadow: inset #{$border-width * 0.5} #{$border-width * -0.5} 0 #{$highlight};
    transform: rotate(-45deg);
    transition: box-shadow 100ms ease-in-out;

    &:active {
      box-shadow: inset #{$border-width * -0.5} #{$border-width * 0.5} 0 #{$highlight};
    }

    .joycon__cross--left & {
      background-color: $light-grey;
    }

    .joycon__cross--right & {
      background-color: $dark-grey;
    }
    
    &--top {
      left: 0;
      top: 0;
    }

    &--left {
      left: 0;
      bottom: 0;
    }

    &--right {
      right: 0;
      top: 0;
    }
    
    &--bottom {
      right: 0;
      bottom: 0;
    }
  }

  &__options {
    position: absolute;
    top: .3em;
    width: .035em;
    height: .035em;
    border-width: $border-width;
    background-color: $light-grey;
    
    &--capture {
      right: .025em;
      
      &::after {
        content: '';
        position: absolute;
        left: 10%;
        top: 10%;
        width: 80%;
        height: 80%;
        border-radius: 50%;
        background-color: $black;
      }
    }
    
    &--home {
      left: .025em;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      
      &::before,
      &::after {
        content: '';
        transform: translateY(-.001em);
      }
      
      &::before {
        width: 0;
        height: 0;
        border-width: 0 #{$border-width*2} #{$border-width*2} #{$border-width*2};
        border-color: transparent transparent #{$black} transparent;
      }
      
      &::after {
        width: 50%;
        height: 33%;
        border-width: 0 #{$border-width/2} #{$border-width/2} #{$border-width/2};
      }
    }
  }
}

@keyframes joyconSnap {
  from {
    transform: translateY(-100%);
  }
}

.arrow {
  width: 0;
  height: 0;
  
  &--up {
    border-width: 0 #{$border-width*1.5} #{$border-width*2} #{$border-width*1.5};
    border-color: transparent transparent #{$black} transparent;
  }
  
  &--left {
    border-width: #{$border-width*1.5} #{$border-width*2} #{$border-width*1.5} 0;
    border-color: transparent #{$black} transparent transparent;
  }
  
  &--right {
    border-width: #{$border-width*1.5} 0 #{$border-width*1.5} #{$border-width*2};
    border-color: transparent transparent transparent #{$black};
  }
  
  &--down {
    border-width: #{$border-width*2} #{$border-width*1.5} 0 #{$border-width*1.5};
    border-color: #{$black} transparent transparent transparent;
  }
}

.letter {
  font-size: .015em;
  line-height: 100%;
  color: #{$white};
}

.tablet,
.body {
  transition: transform .3s ease-out;
}

.tablet {
  position: absolute;
  left: 15%;
  top: 0;
  width: 70%;
  height: 101%;
  border-width: #{$border-width};
  background-color: #{$grey};
  box-shadow: inset 0 -#{$border-width} 0 #{$shadow};
  
  &__frame {
    position: absolute;
    left: $border-width;
    right: $border-width;
    top: #{$border-width*2};
    height: 92.5%;
    border-width: $border-width;
    border-radius: .016em;
    background-color: $dark-grey;
    overflow: hidden;
    
    &::before {
      content: '';
      position: absolute;
      right: .0437em;
      bottom: 0;
      width: .0328em;
      height: $border-width;
      background-color: $black;
    }
    
    &::after { // Reflection
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      background-image:
        linear-gradient(
          to right,
          #{$highlight}  0%,
          #{$highlight}  25%,
          transparent    25%,
          transparent    30%,
          #{$highlight}  30%,
          #{$highlight}  68%,
          transparent    68%,
          transparent    100%
        );
      transform-origin: 0 0;
      animation: tabletShine .75s linear .5s both 1;
    }
  }
  
  &__screen {
    position: absolute;
    left: .0437em;
    right: .0437em;
    top: .027em;
    bottom: .027em;
    display: flex;
    justify-content: center;
    align-items: center;
    border-width: $border-width;
    border-radius: $border-width;
    background-color: $white;
  }
}

@keyframes tabletShine {
  0% {
    transform: skewX(-30deg) translateX(-100%);
  }
  100% {
    transform: skewX(-30deg) translateX(150%);
  }
}

.logo {
  display: grid;
  grid-template-columns: 1.1695fr 1fr;
  grid-template-rows: 1fr;
  grid-gap: .01468em;
  width: .15em;
  height: .15em;
  
  &::before,
  &::after {
    content: '';
  }
  
  &::before {
    border: .0125em solid #{$dark-grey};
    border-radius: .038em 0 0 .038em;
    background: radial-gradient(.0315em .0315em at 50% 27%, $dark-grey calc(50% - 1px), transparent 50%);
    animation: logoLeft .5s linear .25s 1 backwards;
  }
  
  &::after {
    border-radius: 0 .038em .038em 0;
    background: radial-gradient(.0315em .0315em at 50% 55.25%, transparent calc(50% - 1px), $dark-grey 50%);
    animation: logoRight .5s linear .25s 1;
  }
}

@keyframes logoLeft {
  0% { transform: translateY(-25%); }
  50% { transform: translateY(25%); animation-timing-function: ease-out; }
  100% { transform: translateY(0); }
}

@keyframes logoRight {
  25% { transform: translateY(0); }
  50% { transform: translateY(25%); animation-timing-function: ease-out; }
  100% { transform: translateY(0); }
}

.grip {
  $grip-ring: 0.0125em;
  
  position: absolute;
  left: 0;
  right: 0;
  top: $offset;
  z-index: 0;
  overflow: visible;
  width: .4372em;
  height: .4372em;
  margin: auto;
  border-width: #{$border-width};
  border-width: 0;
  border-radius: 0.0875em;
  // background-color: $dark-grey;
  background:
    linear-gradient(90deg, transparent calc(30% - 1px), #{$dark-grey} 0, #{$dark-grey} calc(70% + 1px), transparent 0) no-repeat 50% 100% / 100% calc(100% - (#{$grip-ring} + #{$border-width})),
    linear-gradient(90deg, #{$black} 30%, transparent 0, transparent 70%, #{$black} 0) no-repeat 50% 100% / 100% 100%,
    radial-gradient(circle at 0 0, transparent calc(#{$grip-ring} + #{$border-width}), #{$dark-grey} 0, #{$dark-grey} 75%, transparent 0) no-repeat 50% 0 / 40% calc(#{$grip-ring} + #{$border-width} + 2px),
    radial-gradient(circle at 100% 0, transparent calc(#{$grip-ring} + #{$border-width}), #{$dark-grey} 0, #{$dark-grey} 75%, transparent 0) no-repeat 50% 0 / 40% calc(#{$grip-ring} + #{$border-width} + 2px);
  transform: translateY(50vh);
  transition: transform .3s ease-out;
  
  &::before,
  &::after {
    content: '';
    position: absolute;
    bottom: 0;
    z-index: -1;
    width: 32%; // Handle itself is 80% of the width of the visible part of the middle of the grip, which is about 40% of the side length
    height: 90%;
    border-width: #{$border-width};
    border-radius: 50% / 25%;
    background-color: $dark-grey;
    transform-origin: 50% 100%;
  }
  
  &::before {
    left: -30%;
    transform: rotate(15deg);
  }
  
  &::after {
    right: -30%;
    transform: rotate(-15deg);
  }
  
  .power-leds {
    $led-count: 4;
    $led-size: 0.0125em;
    $led-border: $led-size * 0.2;
    $led-powerdown-delay: 2000ms;
    $led-powerdown-start: 4000ms;
    
    position: absolute;
    top: 0;
    bottom: 25%;
    left: 0;
    right: 0;
    
    display: grid;
    gap: #{$led-size};
    margin: auto;
    
    width: 30%;
    height: calc(#{$led-size} * (#{$led-count} + #{$led-count} - 1)); // 4 LEDs, with a gap between each (N-1=3) equaling the same size as an LED = 4+3 = height of 7 LEDs
    
    .led {
      position: relative;
      
      &::before,
      &::after {
        content: '';
        
        position: absolute;
        top: 0;
        
        width: #{$led-size};
        height: #{$led-size};
        
        color: #{$grey};
        border: #{$led-border} solid #{$black};
        background: currentColor;
        
        animation: powerLed 1s steps(1) both;
      }
      
      &::before { left: 0; }
      &::after { right: 0; }
      
      @for $led-index from 1 through $led-count {
        &:nth-child(#{$led-index}) {
          &::before { animation-delay: calc(#{$led-powerdown-start} + #{$led-powerdown-delay * ($led-index + 1)}); }
          &::after { animation-delay: calc(#{$led-powerdown-start} + #{$led-powerdown-delay * 0.5} + #{$led-powerdown-delay * ($led-index + 1)}); }
        }
      }
    }
  }
}

@keyframes powerLed {
  from {
    background: green;
  }
}

// Portable version!
@media screen and (max-width: 767px) {
  .tablet,
  .body {
    transform: translateY(#{$offset * -1});
  }
  
  .joycon--left { animation: joyconLeftDetach 1s ease-out forwards; }
  .joycon--right { animation: joyconRightDetach 1s ease-out .15s forwards; }
  
  .grip {
    transform: translateY(0);
    transition-delay: .25s;
  }
}

@keyframes joyconLeftDetach {
  0% { transform: translateX(0) translateY(0); }
  25% { transform: translateX(0) translateY(#{$offset * -1}) rotate(-9deg); }
  50% { transform: translateX(#{$offset * 1.1}) translateY(#{$offset * -1}); }
  100% { transform: translateX(#{$offset * 1.1}) translateY(#{$offset}); }
}

@keyframes joyconRightDetach {
  0% { transform: translateX(0) translateY(0); }
  25% { transform: translateX(0) translateY(#{$offset * -1}) rotate(9deg); }
  50% { transform: translateX(#{$offset * -1.1}) translateY(#{$offset * -1}); }
  100% { transform: translateX(#{$offset * -1.1}) translateY(#{$offset}); }
}
!

JS 

              
                // Resize your browser window!
// Based on the following shot by Jon E. Allen on dribbble:
// https://dribbble.com/shots/4203534-Switch
!
999px

Console