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This article mainly introduces the relevant knowledge of HTML grouping, the content is detailed and easy to understand, the operation is simple and fast, and has a certain reference value. I believe you will gain something after reading this HTML grouping article. Let's take a look at it.

Grouping offers some interesting options. For example, all the rule groups in the following example are equivalent, and each group simply shows a different way to group selectors and declarations:

/ * group 1 * / h2 {color:silver; background:white;} h3 {color:silver; background:gray;} h4 {color:white; background:gray;} h5 {color:silver; background:white;} b {color:gray; background:white;} / * group 2 * / H2, h3, h5 {color:silver;} h3, h4 {background:gray;} H2, h5, b {background:white;} h4 {color:white;} b {color:gray;} / * group 3 * / H2, h5 {color:silver; background:white } h3 {color:silver;} h4 {color:white;} h3, h4 {background:gray;} b {color:gray; background:white;} this article on "what are the HTML groupings" is introduced here, thank you for reading! I believe you all have a certain understanding of the knowledge of "what is the HTML group". If you want to learn more, you are welcome to follow the industry information channel.

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