Can we just use pixel and % in measurement attributes?

Question

we can use all units (or most of them) for measurement attributes but the solo said that we can use just % and pixel!

Answer 1

we can use all units (or most of them) for measurement attributes but the solo said that we can use just % and pixel!

Answer 2

You usually should be able to use them all (all means %, pixel and em which are the only ones)

Answer 3

They are not the only ones, for example we have vh, vw, rem among others.