This is a good point, because, technically, I can achieve any number by dividing it by something.

Should we have a vertical / horizontal spacing `var` as the smallest common denominator, lets call then `$h` and `$v`. 

We can then either have ($h*2) or, if we want to set a limited amount of them `$2h`.

The point of these variables are for consistency in design, not really code, so we should find a design paradigm and then abstract it into code.