html is a markup language, and html5 is the fifth revision of the HTML standard. It is a new standard for HTML, XHTML and HTML DOM. It adds header, footer, nav, section and other tags and a series of APIs.
The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.
The relationship between html and html5
HTML, that is, Hyper Text Markup Language (Hyper Text Markup Language), is a tool for creating web pages and other content that can be browsed on web pages. A markup language designed to design information seen in the browser, specifically used to design and edit web pages.
HTML5 is the fifth revision of the HTML standard, the latest revised version of HTML, and a new standard for HTML, XHTML and HTML DOM. The standard was completed by the World Wide Web Consortium (W3C) in October 2014.
html5 adds header, footer, nav, section and other tags and a series of APIs based on the HTML standard.
HTML5 also specifies various scripting APIs that can be used with JavaScript and CSS3. The following are just some of them: Drag and Drop, Geolocation, Application Caching, Local Storage, Web Workers, SSE (Server Sent Events)
To summarize, HTML5 is by far the most advanced version of the HTML standard ever invented. Bringing developers and designers a whole new world of multimedia possibilities.
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
4. Differences in structural semantics
html: There are no tags that reflect structural semantics, such as:
html5: Added many semantic tags, such as:
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
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
