Concept of XHTML
XHTML (Extensible HyperText Markup Language) is a “stricter” version of HTML. It is essentially HTML rewritten in XML (Extensible Markup Language). XHTML was designed to make the web more organized. Because XML is readable by many different types of software.
The 5 Strict Rules of XHTML
To be valid, an XHTML document must follow these rules:
- All tags must be closed
- Tags must be lowercase
- Proper Nesting
- Quotes for Attributes
- One Root Element
Key Advantages of XHTML
- Cleaner and Consistent Code
- XML Interoperability
- Enhanced Interoperability
- Improved Error Handling
- Future-Proofing
- Reduced Bandwidth Costs