Shulou(Shulou.com)06/02 Report--

Why does html5 use semantic elements? I believe many inexperienced people are at a loss about it. Therefore, this paper summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

Html5 uses semantic elements to: 1, increase the accessibility of the website, help to create a better website structure; 2, facilitate later modification and maintenance; 3, facilitate screen readers and other auxiliary tools to scan the page to provide a better Internet experience for people with disabilities; 4, conducive to search engine optimization.

The operating environment of this tutorial: windows7 system, HTML5 version, Dell G3 computer.

It is very important for any language to understand the meaning of words in the process of communication. If this is computer communication, then it will become more critical. As a result, HTML5 provides more semantic elements that make it easy to understand the code.

Therefore, semantics define the meaning of words and phrases, that is,

Semantic element = an element with meaning. Semantic elements have a simple and clear meaning for both browsers and developers.

For example:

In HTML4, we see that et al are non-semantic elements. They didn't reveal anything.

And, on the other hand, are semantic elements because they clearly define their content.

HTML5 semantic elements are supported by all major browsers.

Why use semantic elements?

In HTML4, developers must style elements with their own id/class name: header, top, bottom, footer, menu, navigation, main content, container, content, article, sidebar, topnav, etc.

It is very difficult for search engines to identify the correct web content. Now in the HTML5 element (), this will become easier.

According to the W3C semantic ideal: "data can be shared and reused across applications, including enterprises and communities."

The meaning of semantic elements of html5

1. Easy to modify and maintain.

Before html5 came out, traditional web pages were basically laid out by div. It is actually a bit difficult to understand the overall layout and the importance of different blocks (although semantic classes can be added). Through html5 semantic elements, you can quickly understand the basic structural information through tags. In this way, it will be easier when you go back and revise it in a few months. And it's even more important when someone else takes over your project!

2. Accessibility.

It is convenient for screen readers and other auxiliary tools to scan the page, so as to provide a better Internet experience for people with disabilities.

3. Search engine optimization.

Search engines like Google and Baidu will automatically crawl through web and get every web page. When your tags are semantic, search engines can understand your site amicably and rank your site (ps: of course, money is still very important)

4. It can not only increase the accessibility of the website, but also help to create a better website structure.

After reading the above, do you understand why html5 uses the semantic element method? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.