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This article will explain in detail what the size unit in CSS is. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

1.px: in pixels. It is every dot displayed on the display screen, and it is the smallest unit displayed. It is an absolute unit of size; it is a fixed unit.

2.em: it describes the font size relative to the current element, so it is also a unit of relative length. The general browser font size defaults to 16px, then 2em = = 32px; sets the font size relative to its parent element.

3%: percentage, which is a purer unit of relative length. It describes the percentage value relative to the parent element. If 50%, it is half of the parent element.

4.rem: is a relative unit; resizes relative to the root element.

11. Color value representation of CSS

1. Word representation

Red green blue black white grey yellow pink orange...

two。 Hexadecimal representation

# ff0000 # 00ff00 # 0000ff # 000000 # ffffff # 111111

# f00 # 0f0 # 00f # 000 # fff # 111

3.rgb representation

(255par 0pl 0)

4.rgba representation

(255pr. 255pr 0pr 0.3)

This is the end of the article on "what is the size unit in CSS". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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