Goal: determining margin mixin is working properly
Expected result:
@include margin(1)
@include margin(3)
@include margin(5)
@include margin(value in space-units)
@include margin-vertical(value in space-units)
@include margin-horizontal(value in space-units)
@include margin-top(value in space-units)
@include margin-right(value in space-units)
@include margin-bottom(value in space-units)
@include margin-left(value in space-units)
@include margin(-1)
@include margin(-3)
@include margin(-5)