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This article mainly introduces the relevant knowledge of "what is the syntax of HTML sub-selector". The editor shows you the operation process through an actual case, which is simple, fast and practical. I hope this article "what is the syntax of HTML sub-selector" can help you solve the problem.

The sub-selector uses a greater than sign (sub-combinator).

There can be blank spaces on both sides of the subcombination, which is optional. Therefore, there is no problem with the following words:

H2 > strongh2 > strong

If you read from right to left, the selector H2 > strong can be interpreted as "selecting all strong elements that are children of H2 elements."

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What are the characteristics of html 1, simplicity: hypertext markup language version upgrade using superset mode, thus more flexible and convenient, suitable for beginner front-end developers to use. 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.

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