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HTML

              
                <!-- It's important to put the inputs in spans because chrome has a bug where it borks the animations of radio buttons when they're all siblings of each other -->

<div class="radio">
  <span><input type="radio" name="radio"></span>
  <span><input type="radio" name="radio"></span>
  <span><input type="radio" name="radio" checked></span>
</div>

<div class="check">
  <span><input type="checkbox" name="checkbox" checked></span>
  <span><input type="checkbox" name="checkbox"></span>
  <span><input type="checkbox" name="checkbox"></span>
</div>
              
            
!

CSS

              
                @import compass

// vars & transition
// updated to be more r/g color blind friendly
$on: rgba(133,255,122,1)
$off: rgba(44,63,82,1)
$selected: rgba(21,32,42,1)
  
.transition
  @include transition( all 0.25s cubic-bezier(.75,.01,.48,2))

.bgTransition
  @include transition( all 0.25s ease-in-out )

// styling pseudo attributes
input[type=radio] , input[type=checkbox]
  position: relative
    
  &:before , &:after
    content: ""
    position: absolute
  
  &:before
    height: 100%
      
  &[type=radio]
    border-radius: 30px
    
    &:before
      width: 100%
      border-radius: 30px
      background-color: $off
      box-shadow: 0 0 0 1px $off
      @extend .bgTransition
      
    &:after
      width: 100%
      height: 100%
      border-radius: 30px
      background-color: $selected
      @include scale( 0 , 0 )
      @extend .transition
        
    &:checked
      &:after
        @include scale( 0.75 , 0.75 )
          
      &:before
        background-color: $on
        box-shadow: 0 0 0 1px $on
    
  &[type=checkbox]
    
    &:before
      width: 200%
      background-color: $off
      box-shadow: 0 0 0 1px $off
      @include translate( -25% , 0 )
      border-radius: 30px
      @extend .bgTransition
      
    &:after
      width: 80%
      height: 80%
      margin-top: 10%
      margin-left: 10%
      background-color: $selected
      border-radius: 30px
      @include translate( 60% , 0 )
      @extend .transition
    
    &:checked
      &:after
        @include translate( -60% , 0 )
      
      &:before
        background-color: $on
        box-shadow: 0 0 0 1px $on

// holder + basic styling
*
  -webkit-tap-highlight-color: rgba(0,0,0,0)
  -webkit-touch-callout: none
  -webkit-user-select: none
  -khtml-user-select: none
  -moz-user-select: none
  -ms-user-select: none
  user-select: none
    
html
  background-color: $selected

input
  display: block
  margin: 36px
  
  &[type=radio] , &[type=checkbox]
    cursor: pointer
    width: 30px
    height: 30px
    
.radio , .check
  position: absolute
  @include translate( -50% , -50% )
  top: 50%
  left: 50%
  
.radio
  margin-left: -36px
  
.check
  margin-left: 36px
              
            
!

JS

              
                
              
            
!
999px

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