CSS Units

Measurements

Unit	Description
%	a percentage of something
in	inch
cm	centimeter
mm	millimeter
em	one em is equal to the font size of the current element
ex	one ex is the x-height of a font, the x-height is usually about half the font-size
pt	point (1 pt is the same as 1/72 inch)
pc	pica (1 pc is the same as 12 points)
px	pixels (a dot on the computer screen)

Colors

Unit	Description
color_name	A color name (red)
rgb(x,x,x)	A rgb value (rgb(255,0,0))
rgb(y%, y%, y%)	A rgb percentage value (rgb(100%,0%,0%))
#rrggbb	A hex number (#ff0000).

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