What are the HTML groupings?

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.