Sizable function doesn't work with negative values.

[Simeon Simeonoff]

Consider the following example:

--label-position: #{sizable(-18px, -22px, -26px)};
transform: translateY(var(--label-position));

The example doesn't work since the sizable function uses the max function internally to determine the value to be used in each size. The maximum value in the set of values will always be -18px, since its closer to 0.

The sizable function should work with negative values as well as positive ones.