CSS:CSS units

YLBTECH-CSS:CSS units

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1. Size

Unit	Description
%	Percentage
Inch	Inches
Cm	Cm
Mm	Mm
Em	1em equals the current font size. 2em equals twice times the current font size. For example, if an element is displayed in 12pt, then 2EM is 24pt. in CSS, EM is a very useful unit because it automatically adapts to the font that the user uses .
Ex	An ex is a font of x-height. (X-height is usually half the size of the font.) )
Pt	LBS (1 pt equals 1/72 inches)
Pc	12-point movable (1 pc equals 12 points)
Px	Pixel (a point on the computer screen)

Color

Unit	Description
(color name)	Color name (e.g. red)
RGB (X,X,X)	RGB values (such as RGB (255,0,0))
RGB (x, x, x)	RGB percent value (such as RGB (100%,0%,0%))
#rrggbb	hexadecimal number (e.g. #ff0000)

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1, HTTP://WWW.W3SCHOOL.COM.CN/CSSREF/CSS_UNITS.ASP2,

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CSS:CSS units