This is enabled by the Tailwind spacing system.
--spacing: 0.25rem
w-80
w-72
w-64
w-60
w-56
w-52
w-48
w-44
w-40
w-36
w-32
w-28
w-24
w-20
w-16
w-14
w-12
w-11
w-10
w-9
w-8
w-7
w-6
w-5
w-4
w-3.5
w-3
w-2.5
w-2
w-1.5
w-1
w-0.5
w-[1px]
This affects the following utilities.
padding
margin
width
minWidth
maxWidth
height
minHeight
maxHeight
gap
inset
space
translate