<h1>
The h1 element represents the top-level heading and most important title of a page or section.
Syntax
<h1>...</h1>Examples
<h1>Getting Started with HTML</h1>
<h2>Installation</h2>
<h3>Requirements</h3>
Output
Renders a large bold page title followed by progressively smaller subheadings.
Notes
Headings h1 through h6 define document outline. Use exactly one logical h1 per page and do not skip levels (h2 before h3); screen reader users navigate by heading structure.
Browser & runtime support
| Environment | Since version |
|---|---|
| chrome | 1.0 |
| firefox | 1.0 |
| safari | 1.0 |
| edge | 12 |