What are the differences between html5 and html? Summary of the four major differences between html5 and html-HTML Tutorial-php.cn

What are the differences between html5 and html? Summary of the four major differences between html5 and html

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Release： 2018-08-31 17:42:14

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What is the difference between html and html5? I believe many friends have this question, so the following article on php Chinese website will give you a detailed introduction to the difference between html5 and html, so that you can understand it at a glance.

1. First, let us take a look at what is html? What is html5?

1. What is html?

According to the definition of W3C, we can know that html refers to hypertext markup language. It is not a programming language, but a language that uses markup tags to describe web pages.

Here is just a brief introduction to the definition of html. If you want to know more about html, you can read this article: What is html? I think the article is interesting. If you are not satisfied, you can go to the php Chinese website html video tutorial column to learn.

2. What is html5?

From Baidu Encyclopedia, we can know that html5 is the fifth major modification of Hypertext Markup Language (HTML), an application under the Standard Universal Markup Language, the core language of the World Wide Web. This is just a simple definition, so if you want to know more about what html5 is? You can take a look at this article: What is H5? You can fully understand what an html5 page is in 5 minutes.

Of course, you can also go to the html5 video tutorial column of the php Chinese website to learn courses.

After reading the brief introduction of html5 and html, let’s get to the point and talk about the difference between html5 and html.

2. What are the differences between html5 and html?

The difference between html5 and html 1: The difference between document declarations

html：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

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html5：

 <!DOCTYPE html>

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As can be seen from the above, in the document declaration, html has a long section of code, which is not easy to remember, but html5 is different. It only has a simple declaration, which is also convenient for people to remember.

The difference between html5 and html 2: structural semantics

There is no structural semantic tag in html, we usually name it like this. This represents the head of the website.

html5 deletes some outdated tags and adds some new semantic tags on the basis of html, such as: