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This article introduces the knowledge of "how to set multiple values at the same time". 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!

What is the meaning of class setting multiple values at the same time?

Class uses multiple values

Each value is separated by a space.

On behalf of class, three CSS selectors are introduced, namely:

.aaa {} .bbb {} .ccc {}

Why is there so much?

In fact, sometimes a style is used in many places, some are shared, and some are distinguished. At this time, a new CSS selector will be used together, and a new CSS determiner will be created consistently. How convenient it is for cong to use wasted CSS code.

For example, a CLASS multi-value is simple and familiar.

If there are three DIV boxes, the equipment is equipped with a similar border name, but the width is different, that is, it is possible to use a div to apply a class to introduce multiple selector names.

Complete example code:

Class multiple value instance .bk {border:1px solid # F00} .w100 {width:100px} .w200 {width:200px} .w300 {width:300px} width 100, with border width 200, with border width 300, with border

Here three DIV are set similar to the border color, the width is not the same, the application of one class using two CSS resolvers.

A class= multi-value is also equal to a class call introducing multiple css names.

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