scrollbar($color-thumb, $color-track = transparent)
  // firefox
  scrollbar-color $color-thumb $color-track
  scrollbar-width thin

  // chrome
  &::-webkit-scrollbar
    width 6px
    height 6px

  &::-webkit-scrollbar-track
    box-shadow none
    background-color $color-track

  &::-webkit-scrollbar-thumb
    padding 12px
    border-radius 3px
    background-color $color-thumb