XHTML Basics

HTML 4.01 Recommendation: http://www.w3.org/TR/html4/
XHTML 1.0: http://www.w3.org/TR/xhtml1/
XHTML 1.0 for the syntax and HTML 4.01 for the semantics of XHTML 1.0
XHTML comes in three flavours:
- Strict: no styling attributes that are deprecated should appear
- Transitional: styling attributes may appear
- Frameset: frame functionality is also allowed
We are only interested in XHTML Strict