Centering elements absolutely

@mixin absolute-center($type: both) {
  position: absolute;
  @if $type == both {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  } @else if $type == x {
    left: 50%;
    transform: translateX(-50%);
  } @else if $type == y {
    top: 50%;
    transform: translateY(-50%);
  }
}