Unit
Last updated
Last updated
cm
centimeters
mm
millimeters
in
inches (1in = 96px = 2.54cm)
px *
pixels (1px = 1/96th of 1in)
pt
points (1pt = 1/72 of 1in)
pc
picas (1pc = 12 pt)
em
Relative to the font-size of the element (2em means 2 times the size of the current font)
ex
Relative to the x-height of the current font (rarely used)
ch
Relative to width of the "0" (zero)
rem
Relative to font-size of the root element
vw
Relative to 1% of the width of the viewport*
vh
Relative to 1% of the height of the viewport*
vmin
Relative to 1% of viewport's* smaller dimension
vmax
Relative to 1% of viewport's* larger dimension
%
Relative to the parent element