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Today, I will introduce to you what are the advantages of html5. The content of the article is good. Now I would like to share it with you. Friends who feel in need can understand it. I hope it will be helpful to you. Let's read it along with the editor's ideas.

The advantages of html5 are as follows: 1, solve the cross-browser problem; 2, add a number of new features (new form controls, canvas elements for painting, video and audio); 3, better support for local offline storage; 4, provide geographical location, drag, camera and other API;5, user priority principle and so on.

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

From HTML4.0 to XHTML to HTML5, in a sense, this is a more standardized process of HTML descriptive markup language. As a result, HTML5 has not had much impact on developers. But HTML5 has added a lot of new features and features that are very useful. Here are some of the advantages of HTML5.

1. Solved the cross-browser problem

Before HTML5, major browser manufacturers added a variety of functions to their browsers in order to compete for market share, and did not have a unified standard. Using different browsers, you often see different page effects. In HTML5, all reasonable extension functions are included, and it has good cross-platform performance. For older IE browsers that don't support new tags, you can use new elements by simply adding JavaScript code.

2. Several new features have been added.

HTML language has undergone great changes from 1.0 to 5.0. from a single text display function to a multimedia display function with pictures and texts, many features have been improved for many years and have developed into a very important markup language. The new features of HTML5 are as follows.

New special content elements, such as header, nav, section, article, footer.

New form controls, such as calendar, date, time, email, url, search.

The canvas element used for painting.

Video and audio elements for media playback.

Better support for local offline storage.

API such as geographic location, drag, camera, etc.

3. The principle of user priority

The formulation of HTML5 standards is based on the principle of "user first". In case of conflicts that cannot be resolved, the specification will put users first. In addition, in order to enhance the experience of using HTML5, the following two aspects of the design have been strengthened.

Design of security mechanism

In order to ensure the security of HTML5, a lot of security designs have been done when designing HTML5. HTML5 introduces a new source-based security model, which is not only easy to use, but also common to different API (Application Programming Interface, application programming interface). Using this security model, you can have secure conversations across domains without the help of any insecure hack.

Separation of performance and content

The separation of presentation and content is another important part of HTML5 design. In fact, the separation of presentation and content has been designed for a long time in HTML4.0, but the separation is not complete. In order to avoid the problems of poor accessibility, high code complexity, and large files, the HTML5 specification separates the performance from the content more carefully and clearly. However, considering the compatibility of HTML5, some old performance and content code can still be used.

4. the advantage of turning complexity into simplicity

As a popular universal markup language, HTML5 is as simple as possible and strictly follows the principle of "simplicity first", which is mainly reflected in these aspects:

New simplified character set declaration

New simplified DOCTYPE

Simple and powerful HTML5 API

Replace complex JavaScript code with browser native capabilities. In order to achieve these simplified operations, the HTML5 specification needs to be more detailed and precise than before. In order to avoid misunderstanding, HTML5 has a very clear specification for every detail and does not allow any ambiguity or ambiguity.

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