: The H3 Element
Last updated: 2026-09-12
<h3>The H3 Element
The <h3> element is a level-3 heading used below <h2> for subsections, organizing finer content structure.
| Category | Text Content |
|---|---|
| Content Model | Flow content, heading content |
| Allowed Parents | Any element that accepts flow or heading content |
| Content Tag | Yes — requires closing </h3> tag |
| Status | Standard |
📝 Syntax
<h3>Level 3 heading</h3>▶ Example
Edit the code below and see the live result in the playground:
🌐 Browser Support
| Browser |  Chrome |
 Edge |
 Firefox |
 Safari |
 Opera |
|---|---|---|---|---|---|
| <h3> | ✓ v1 | ✓ v12 | ✓ v1 | ✓ v1 | ✓ v1 |
| Supported in all major browsers | |||||
🏷️ Related Tags
💡 Related Cases
📚 Related Tutorials
