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This article introduces the knowledge of "is the css font size unit em?". In the operation of actual cases, many people will encounter such a dilemma. Next, 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!

In css, the unit of font size can be em,em as the unit of relative length; em describes the font size relative to the font size applied to the current element, and the style of font size in css is set using the "font-size" attribute, which can use em as the unit of the attribute value.

The operating environment of this tutorial: windows10 system, CSS3&&HTML5 version, Dell G3 computer.

Can the css font size be em?

The css font size unit can be em.

In the overall layout of the page, the size of the page elements (length, width, internal and external margins, etc.) and the size of the page font is also one of the important work. A reasonable setting will make the page look hierarchical, focused and pleasing to the eye. On the other hand, an unfriendly page size and font size setting will increase the complexity of the page and increase the complexity of the user's understanding of the page.

Em: it describes the font size relative to the current element, so it is also a unit of relative length.

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.

The font-size property sets the size of the font, and you can use em units.

Examples are as follows:

Document .p1 {font-size:5px;} .p2 {font-size:5em;} this is the px unit

This is the em unit.

Output result:

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