The in unit for CSS specifies the length of the element in inches.
1in = 2.54cm = 25.4mm = 6pc = 72pt = 96px = 101.6Q
<number>in
cm
mm
pc
pt
px
Q
cap
ch
cqb
cqh
cqi
cqmax
cqmin
cqw
deg
dpcm
dpi
dppx
dvb
dvh
dvi
dvmax
dvmin
dvw
em
ex
grad
ic
lvb
lvh
lvi
lvmax
lvmin
lvw
ms
rad
rem
s
svb
svh
svi
svmax
svmin
svw
turn
vb
vh
vi
vmax
vmin
vw
World Wide Web Consortium (W3C)
