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This article mainly introduces the relevant knowledge about the role of HTML's [att | = "val"]. The content is detailed and easy to understand, easy to operate, and has a certain reference value. I believe you will gain something after reading this HTML [att | = "val"] article. Let's take a look.

[att | = "val"] can be used for any attribute and its value.

Suppose an HTML document has a series of pictures, each with a file name shaped like figure-1.jpg and figure-2.jpg. You can use the following selector to match all of these images:

What are the characteristics of img [src | = "figure"] {border: 1px solid gray;} html 1. Simplicity: hypertext markup language version upgrade adopts superset method, which makes it more flexible and convenient, and is suitable for beginner front-end developers.

2. Extensibility: the wide application of hypertext markup language brings the requirements of strengthening functions and increasing identifiers. Hypertext markup language adopts the way of subclass elements to ensure the expansion of the system.

3. Platform independence: hypertext markup language can be used on a wide range of platforms, which is one of the reasons why the World wide Web is so popular.

4. Versatility: HTML is the universal language of the network, which allows web producers to create complex pages that combine text and pictures, which can be viewed by anyone else on the Internet, no matter what type of computer or browser they are using.

This is the end of the article on "what is the function of HTML's [att | =" val "]. Thank you for reading it! I believe you all have a certain understanding of the knowledge of "what is the function of HTML [att | =" val "]. If you want to learn more, you are welcome to follow the industry information channel.

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