How to use html5

With the development of the Internet era, people's demand for web pages is getting higher and higher. In the past, web pages were mainly composed of HTML and CSS, but with the emergence of HTML5, web page development has also developed in a richer and more diverse direction. So, how to use HTML5? This article will introduce it to you in detail.

1. What is HTML5

HTML5 is the fifth version of HTML. Its main goal is to turn web pages into a richer, multimedia tool. It has many new functions and features, such as native support for video and audio, Canvas drawing, Web storage and local storage, etc., which provide more possibilities for web development.

2. How to use HTML5

1. Declare the document type

In HTML5, you need to declare the document type in the document header, for example:

< ;!DOCTYPE html>

2. Use new tags

HTML5 has added many new tags, for example:

: indicates the page An area in , commonly used in blogs, articles, etc.

: Represents the top of a page or section

: Represents The bottom of the page or section

: Represents the part of the navigation link

: Represents an article in the page

: Indicates the sidebar in the page

: Indicates the main content in the page

: Indicates video

: Indicates audio

: Indicates image and description

: Indicates image drawing

: Indicates date picker

: Represents the email input box

: Represents the search box

3. Use new attributes

HTML5 has added many new attributes, such as:

autofocus: automatically gain focus

required: required item

placeholder: prompt text

pattern: input Format

maxlength: maximum length

min, max: minimum and maximum value

step: increasing and decreasing value

4. Use web storage and local Storage

Web storage and local storage are one of the new features of HTML5. In the past web development, data was stored on the server side, but with the increasing complexity of web applications, it has become a trend to store data on the client side. Web storage includes Cookies, LocalStorage and SessionStorage, all of which support data storage and reading. LocalStorage is a new local storage function in HTML5. Compared with Cookies, LocalStorage can store more data and does not occupy too many server resources.

5. Draw using Canvas

Canvas is a new tag in HTML5, which can be used to draw graphics, animations and games. You can use JavaScript to draw images on Canvas, such as drawing lines, rectangles, circles, polygons, etc. In addition, animation effects can also be implemented on Canvas.

6. Using video and audio

In HTML5, you can directly use the video and audio tags to play video and audio. Video and audio formats are widely supported, such as MP4, OGG, MP3, etc. Prior to this, if you wanted to play video and audio on a web page, you needed to use third-party plug-ins such as Flash.

3. Summary

The emergence of HTML5 provides many new possibilities for web development, making web pages richer and more diverse. Through this article, we can learn how to use some new functions and features in HTML5, such as new tags, attributes, Web storage and local storage, Canvas drawing, video and audio playback, etc. In future web development, we should make full use of the advantages of HTML5 to create better web pages.

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