HTML是Web开发的重要一环，HTML的官网是我们了解HTML的最佳学习资源。下面是HTML官网的源码：

The HTML5 Herald
The HTML5 Herald

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HTML5 is Here

HTML5 is the latest version of the Hypertext Markup Language (HTML), the language of the Internet. It is designed to make it easier to describe and publish web-based content and applications for a variety of devices and platforms. HTML5 includes a range of new features and improvements over its predecessor, HTML4, such as support for new multimedia elements like video and audio, improved support for web-based forms, enhanced semantic markup, better accessibility features, and more.

A Brief History of HTML

The history of HTML dates back to the early days of the World Wide Web, when Tim Berners-Lee invented the first web browser and laid the foundation for the modern web. HTML was initially designed to be a simple markup language for describing static documents, but over time it has evolved to become a powerful tool for creating dynamic, interactive websites and applications.

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这个源码文件主要是一个HTML5页面，包含了一些基本的HTML标签。头部用来引入样式文件和设置页面标题等信息。主要内容放在body标签内，包括标题、导航、两个章节和页脚。

值得一提的是，本页面也使用了HTML5中的一些新特性，比如section标签、header标签、footer标签等等。这些新的标签能够更好地描述网页的结构和语义，并提高阅读体验和搜索引擎优化效果。

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