Tag Nesting in HTML
Tag nesting in HTML refers to placing one HTML element inside another. Proper nesting is important to ensure the document is well-formed and behaves consistently across browsers.
What is Tag Nesting?
Tag nesting is when HTML elements are placed within other elements. This is common when structuring content.
<div>
<p>This is a <strong>strong</strong> word.</p>
</div>
In the example above, the <strong> tag is nested inside the <p> tag, which is inside a <div>.
Rules for Proper Nesting
- Tags must be closed in the reverse order of how they were opened.
- Improper nesting can break layout and styling.
- Do not overlap tags (e.g.,
<i><b>text</i></b>is incorrect).
<!-- Correct -->
<em><strong>Important</strong></em>
<!-- Incorrect -->
<em><strong>Important</em></strong>
Common Nesting Patterns
<ul>with nested<li>elements<form>containing<input>and<label><table>containing<tr>and<td>
Conclusion
Tag nesting is an essential part of writing structured HTML. Always ensure that tags are properly opened, closed, and correctly nested for a clean and functional webpage.