In typography, H1, H2, and H3 tags create a hierarchy for content structure: H1 is the main page title (one per page), H2 denotes major section headings, and H3 serves as subheadings within H2 sections, guiding readers and search engines through logical information flow, with H3s supporting H2s and H2s supporting the H1.

H1: The Main Title

Purpose: The primary, most important heading for the entire page, like a book’s title. Usage: Use only one H1 per page for clarity and SEO. Content: Clearly state the page’s main topic using a natural, human-readable headline.

H2: Major Sections Purpose:

Break down the H1 topic into key sections, like chapter titles. Usage: Follows the H1, organizing major content areas. Content: Clearly explain the subject of that section.

H3: Subsections Purpose:

Further divide lengthy or complex H2 sections into smaller, digestible parts. Usage: Always follow an H2, never skip directly from H1 to H3. Content: Provide supporting details for the H2 topic.

Key Principles for H1-H3 Hierarchy:

Maintain a logical order (H1 > H2 > H3). Skimmability: Headings act as signposts for readers and screen readers. Accessibility: Proper tagging helps users with disabilities. SEO: Search engines use them to understand content structure and importance.