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What is the difference between html and html5

青灯夜游Original: 2021-10-29 17:27:4522618browse

Difference: 1. HTML’s document type declaration is long and complex, while HTML5’s document declaration is relatively simple, which is conducive to programmers’ quick reading and development; 2. HTML5 supports SVG, canvas and other virtual Vector graphics, but HTML does not support it; 3. HTML itself does not support audio and video, but HTML5 does, etc.

The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.

HTML

HTML is called Hypertext Markup Language, and most web pages are written in HTML code. HTML allows developers to determine exactly how multimedia, text, and hyperlinks are displayed in a web browser. In HTML, tags are used to define text structure; tags and elements are defined using the a8093152e673feb7aba1828c43532094 character, and the browser is primarily responsible for rendering web content through these tags. But over time, tags used to define document styles have almost been deprecated, as we have begun to prefer style sheets to add richness to web pages, and only content definition tags still form the core HTML.

HTML5

HTML5 is the fifth version of HTML. Many elements have been deleted or modified in HTML5.

Over time, HTML has seen many updates, and the latest version of HTML is currently HTML5. It is still a markup language, but it adds many features to raw HTML and removes some of the strictness present in XHTML. It greatly improves the user experience.

The difference between html and html5

1. The difference between document type declaration

In HTML 5, the Doctype declaration is very simple and easy to use. The Doctype declaration is in Too long and complex in HTML

The type declaration of HTML document is:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
//或
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

The type declaration of HTML5 document is:

<!DOCTYPE html>

HTML5.0: Document declaration HTML5 It is easy to write and concise, which is helpful for programmers to read and develop quickly.

2. The difference between vector graphics

HTML5 supports SVG, canvas and other virtual vector graphics, while in HTML, it can only be combined with different technologies such as Flash and Silver-light. Vector graphics can only be used together.

3. The difference between audio and video support

If HTML does not use Flash player support, it does not support audio and video. HTML5 uses the b97864c2e0ef2353a16c4d64c7734e92 and 39000f942b2545a5315c57fa3276f220 tags to support audio and video control.

4. Differences in structural semantics

html: There are no tags that reflect structural semantics, such as: eb545d6e9e25f5c0174408f6286375ad16b28748ea4df4d9c2150843fecfba68

html5: Added many semantic tags, such as: 23c3de37f2f9ebcb477c4a90aac6fffd, 15221ee8cba27fc1d7a26c47a001eb9b, b97864c2e0ef2353a16c4d64c7734e92, af4e6c3c591431c4583becd75d1c3582...

Relative to HTML , some new and modified elements have been added in HTML5.

5. Syntax processing

HTML cannot handle inaccurate syntax; HTML5 can handle inaccurate syntax.

6. HTML5 adds new form controls, such as: date and time, email, number, range, phone, URL, search, etc.

7. The attributes of charset, async and ping are part of HTML 5. Attributes such as charset, async and ping do not exist in HTML.

8. Enhanced support for web application functions: HTML5 allows the browser to run as an application platform without using any JS or Flash based methods as all functionality is provided by the elements inherent in HTML5.

9. The newly added 5c0e96d12fc7501cef2ae2efde646ee0 and 9b8d7b889acba92c978f783c55ba01dc elements are components of the interactive element specification, but are not often used or talked about by the developer community. However, these two projects can be used to ensure enhanced web interactivity5c0e96d12fc7501cef2ae2efde646ee0. For simplicity, labels are used to represent menu commands in mobile and desktop applications.

[Recommended courses: HTML course, HTML5 course】

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