上查看所有课程
HTML <main> 标签是一个语义化标签，用于定义文档的主要内容。主要内容包含页面旨在向用户提供的主要信息或功能。例如，
<body>
<header>Programiz</header>
<main>
<p>Learn HTML with us.</p>
</main>
</body>浏览器输出
通常，<main> 标签不应包含文章的辅助部分，如导航链接、侧边栏、版权声明、徽标等。主要内容应是 HTML 文档中独一无二的。
示例：HTML <main>
<main>
<h1>HTML Tutorial</h1>
<p>Welcome to our HTML tutorial! In this tutorial, you will learn the basics of HTML and how to use it to create
your own web pages.</p>
<h2>Chapter 1: Introduction to HTML</h2>
<article>
<h3>What is HTML?</h3>
<p>HTML (Hypertext Markup Language) is a markup language used to structure and format content on the web. It
uses a system of tags to define the different elements of a web page, such as headings, paragraphs, and
links.</p>
</article>
<h2>Chapter 2: Getting Started with HTML</h2>
<article>
<h3>Creating an HTML Document</h3>
<p>To create an HTML document, you will need a text editor and a web browser. You can use a simple text editor
like Notepad on Windows, or TextEdit on Mac. Once you have a text editor, you can create a new HTML document
by saving a file with the ".html" extension.</p>
</article>
</main>浏览器输出
