Answer
HTML and XHTML can describe similar documents, but XHTML uses XML syntax and parsing rules. • HTML parsing includes defined error recovery for malformed markup. • XHTML served as XML must be well-formed, use proper nesting, and close every element according to XML rules. • The server media type determines whether a document is parsed as HTML or XML.
💡 Simple Example
<?xml version="1.0" encoding="UTF-8"?><html xmlns="http://www.w3.org/1999/xhtml"><head><title>XHTML example</title></head><body><p>Hello</p></body></html>
⚡ Quick Revision
HTML uses HTML parsing rules; XHTML is HTML expressed and served using XML rules.