What exactly is HTML5?

HTML, the full name is "Hypertext Markup Language", that is, Hypertext Markup Language, which is the construction language of Web pages. HTML5 is the fifth generation specification of HTML and is the latest HTML specification.

HTML5 is considered an important milestone in the development of Web technology. Its emergence has brought many new features and functions to Web development, and has performed well in mobile devices, desktop applications, games and multimedia.

The emergence of HTML5 is to solve some of the problems and challenges currently faced by Web applications and provide more support and opportunities for the development of Web applications. The HTML5 specification adds and expands many features, such as new semantic tags, audio and video embedding, local storage and web applications.

One of the biggest changes is the integration of multimedia support into HTML5, which can play audio and video directly in the browser without the need for third-party plug-ins such as Flash or Silverlight. At the same time, HTML5 also provides new APIs such as WebSocket and WebWorker, allowing Web applications to process data and files more efficiently.

Another major change in HTML5 is the addition of many semantic tags, such as section, article, header, nav, aside, footer, etc., which makes the structure of the Web page clearer and easier for search engines and screens. reader understanding and improves the accessibility of web applications.

In addition, HTML5 also introduces many other new features, such as Form, Canvas, SVG, etc. Among them, Canvas is a new drawing tag that allows developers to draw various graphics and animations on Web pages, providing great convenience for developing Web games.

In addition, HTML5 also enables web applications to better adapt to the screen size of mobile devices and supports offline caching and local storage. These improvements provide many opportunities for developing better mobile web applications.

In general, the emergence of HTML5 is an important milestone in the development of the Web. It provides many new tools and technologies for developing more efficient and convenient Web applications. However, there are still many challenges and issues that need to be resolved, such as the implementation and support of the HTML5 standard, performance and security. But as time goes by, HTML5 will continue to develop and improve, becoming one of the mainstream technologies for web application development.

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