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              <div class="menu-button"></div>
<div class="overlay"></div>
            
          
!
            
              @import compass

$blue: rgba(30,180,245,1)
$red: rgba(255,110,115,1)
$white: rgba(253,254,255,1)
  
.transition
  @include transition( all 0.3s cubic-bezier(.46,.01,.2,1.51))
  
html
  .overlay
    position: absolute
    background-color: $blue
    @extend .transition
    top: 0
    left: 0
    right: 0
    bottom: 0
    z-index: 1
  
  .menu-button
    position: absolute
    z-index: 2
    top: 50%
    left: 50%
    width: 60px
    height: 60px
    background-color: $white
    @include backface-visibility( hidden )
    @include translate( -50% , -50% )
    @extend .transition
    cursor: pointer
      
    &:before , &:after
      content: ""
      @extend .transition
      @include backface-visibility( hidden )
      @include rotate( 0deg )
      position: absolute
      width: 30px
      height: 3px
      background-color: $blue
      top: 50%
      left: 50%
      margin-left: -15px
      margin-top: -1px
      
    &:before
      box-shadow: 0 10px 0 0 $blue
      
    &:after
      margin-top: -11px
      
    &:hover
      border-radius: 50%
      
      & + .overlay
        background-color: $red
      
      &:before , &:after
        background-color: $red
      
      &:before
        box-shadow: 0 0 0 0 $red
        @include rotate( 135deg )
        
      &:after
        margin-top: -1px
        @include rotate( 225deg )
            
          
!
999px
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