@mixin scrollbar($thickness, $border-radius, $thumb-color) {
  &::-webkit-scrollbar {
    height: $thickness;
    width: $thickness;
  }

  &::-webkit-scrollbar-thumb {
    background: $thumb-color;
    border-radius: $border-radius;
  }

  &::-webkit-scrollbar-thumb:hover {
    background: $thumb-color;
  }
}