XHTML Extensible Hypertext Markup Language is family of XML (Extensible Markup Language) extends the HTML (Hypertext Markup Language).
As XHTML document should be well formed and can be parsed using standard XML parsers so it is called as an application of XML, a more obstructive subset of SGML.
XHTML 1.0 is the first document type in the XHTML family.
XHTML 1.0 Benefits:
- XHTML documents are XML conforming. As such, they are readily viewed, edited, and validated with standard XML tools.
- XHTML documents can be written to operate as well or better than they did before in existing HTML 4-conforming user agents as well as in new, XHTML 1.0 conforming user agents.
- XHTML documents can utilize applications (e.g. scripts and applets) that rely upon either the HTML Document Object Model or the XML Document Object Model [DOM].
- As the XHTML family evolves, documents conforming to XHTML 1.0 will be more likely to interoperate within and among various XHTML environments.
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