The translateZ function for CSS specifies a 3D translation by the vector [0,0,tz] with the given amount in the z direction.
translateZ()
<translateZ()> = translateZ( <length> )
<length>
Specifies the length using a number followed by a unit of measurement.
matrix
matrix3d
perspective
rotate
rotate3d
rotateX
rotateY
rotateZ
scale
scale3d
scaleX
scaleY
scaleZ
skew
skewX
skewY
translate
translate3d
translateX
translateY
abs
acos
asin
atan
atan2
attr
calc
clamp
color
conic-gradient
cos
counter
counters
hsl
hsla
hwb
lab
lch
linear-gradient
max
min
mod
oklab
oklch
param
radial-gradient
rem
repeating-conic-gradient
repeating-linear-gradient
repeating-radial-gradient
rgb
rgba
round
sin
src
tan
url
var
World Wide Web Consortium (W3C)