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HTML <h6> Element: Reference and Examples

Learn <h6> element reference with a clear explanation, practical HTML markup, a walkthrough and common mistakes to avoid.

2 views Published Oct 19, 2026 Updated Oct 19, 2026 Admin

You might see <h6> Element reference while reading someone else’s HTML, or need it while building a page of your own. Instead of memorizing a definition, look at a working example and see when the element makes sense.

The Idea in Plain English


A sixth-level heading is the deepest built-in HTML heading. Avoid unnecessary deep nesting.

For a reference page, pay attention to where the element is allowed, whether it needs a closing tag, and what other elements it can contain.

A Working Example


Read the sample once before copying it. Notice the element names and attribute values, then compare them with the explanation below.

<h1>Manual</h1>
<h2>Part</h2>
<h3>Chapter</h3>
<h4>Topic</h4>
<h5>Subtopic</h5>
<h6>Special Case</h6>

What Each Part Does


  • The h1 identifies the principal page heading.
  • The h2 identifies a major subsection.
  • The h3 names a subsection under a larger topic.

Special Case has level six in the heading hierarchy.

Try It Yourself


Try replacing the example content with your own while keeping the valid HTML structure.

Common Beginner Mistakes


  • Using h6 for credits or metadata unrelated to a sixth-level section.
  • Changing several parts of the example at once, making it difficult to see which part caused a different result.
  • Choosing a tag only because its default appearance looks right, without checking whether it describes the content correctly.

Key Takeaways


  • A sixth-level heading is the deepest built-in HTML heading. Avoid unnecessary deep nesting.
  • Special Case has level six in the heading hierarchy.
  • Test the markup in a browser, and check accessibility and real-world behavior where relevant.
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