HTML vs XHTML
HTML and XHTML are both used to build webpages, but they follow different rules. Here’s a simple comparison to understand both easily.
1. HTML
- HTML stands for HyperText Markup Language.
- More flexible - browsers can fix mistakes.
- Tags are not case-sensitive.
- Some tags can remain unclosed.
2. XHTML
- XHTML stands for Extensible HyperText Markup Language.
- Very strict - errors break the page.
- Tags are case-sensitive and must be lowercase.
- Every tag must be closed.
- Attributes must always be quoted.
3. Simple Example
HTML version:
<p>Hello World</p> <br> <img src="logo.png">
XHTML version:
<p>Hello World</p> <br /> <img src="logo.png" />
4. Key Differences
| Feature | HTML | XHTML |
|---|---|---|
| Case Sensitivity | Not case-sensitive | Case-sensitive (lowercase required) |
| Closing Tags | Some tags can stay open | All tags must be closed |
| Strictness | Flexible | Very strict |
| Error Handling | Browser auto-corrects | Errors break layout |
Next Lesson → HTML File Naming
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