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This article introduces the relevant knowledge of "what is the unit of CSS and what is its meaning?" in the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Dimension unit drawing% percentage in inch cm cm mm mm em

1em is the current font size.

2em is equal to twice the current font size.

For example, if an element flashes as 12pt, then 2em is 24pt.

In CSS, the pros and cons of em are often useful units, because it takes the initiative to adapt the fonts used by users.

Ex An ex is the x-height of a font. (x-height is usually half the font size.) Pt lb (1 pt is 1x72 inch) pc12 dot type (1 pc is 12:00) px pixel (a point on the computer screen) color unit depicts (color name) color title (e.g. red) rgb (xpencil x) RGB value (e.g. rgb (255Power0) rgb (x%, x%, x%) RGB percentage value (e.g. rgb (100% 0)) # rrggbb hexadecimal number (e.g. # ff0000)

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