• XHTML
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• vs HTML

Empty Elements Must Also Be Closed 

A break: <br>
A horizontal rule: <hr>
An image: <img src="happy.gif" alt="Happy face">

A break: <br />
A horizontal rule: <hr />
An image: <img src="happy.gif" alt="Happy face" />

1. XHTML - Get Ready For XHTML
2. XHTML - The most Important Differences
3. XHTML - XHTML Elements Must Be Properly Nested
4. XHTML - XHTML Must Always be Closed
5. XHTML - Empty Elements Must Also Be Closed
6. XHTML - XHTML Elements Must Be In Lower Case
7. XHTML - XHTML Documents Must Have One Root Element

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