- In HTML, headings are defined using the `<h1>` to `<h6>` tags. These tags are used to define headings of different levels, with `<h1>` representing the most important heading and `<h6>` the least important. Headings are used to structure the content of a webpage, making it easier to read and navigate. Proper use of headings is also crucial for search engine optimization (SEO), as it helps search engines understand the structure and importance of content on a page.
- Hierarchy and Importance: The hierarchy of headings (`<h1>` through `<h6>`) represents the structure and importance of the content. `<h1>` is generally used for the main title or most important heading on the page, while `<h2>` to `<h6>` are used for subheadings in decreasing order of importance.
- Styling: By default, browsers apply different sizes to each heading level to visually indicate their hierarchy, with `<h1>` being the largest and `<h6>` the smallest. However, these styles can be overridden with CSS to fit the design needs of the webpage.
- Accessibility: Headings play a vital role in accessibility. Screen readers use them to navigate through a webpage, allowing users to quickly find information.
- SEO: Search engines use headings to index the structure and content of web pages. A well-structured document with clear headings can rank better in search results.
- Start with `<h1>`: Every webpage should have a single `<h1>` tag, usually for the main title or most important content of the page. This helps users and search engines understand the primary focus of the page.
- Follow a Logical Order: Use headings in a hierarchical manner without skipping levels. After `<h1>`, use `<h2>` for main section titles, `<h3>` for subsections under those, and so on. This creates a logical structure that's easy to follow.
- Be Concise and Descriptive: Headings should be brief yet descriptive, providing a clear indication of the content that follows.
- Avoid Using Headings for Styling Purposes: Don't use headings purely because of their default appearance; use CSS for styling instead. The purpose of headings is to structure content, not to apply specific font sizes or styles.
<!DOCTYPE html>
<html>
<head>
<title>Sample HTML Document</title>
</head>
<body>
<h1>Main Title of the Page</h1>
<h2>Section Title</h2>
<p>Content for this section...</p>
<h3>Subsection Title</h3>
<p>More detailed content under a section.</p>
<!-- Further subsections or sections -->
</body>
</html>
- In this example, `<h1>` is used for the main title, `<h2>` for major sections of the content, and `<h3>` for subsections within those sections, demonstrating a clear hierarchical structure for the content of the page.
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