Sams Teach Yourself HTML and CSS in 24 Hours (7th Edition)

Appendix D. Migrating from HTML to XHTML

Although the relationship between HTML and XHTML has been covered in several places throughout the book, I felt it would be beneficial to have all the information in one place. This appendix serves as a reference for quickly obtaining the information regarding the differences between HTML 4 and XHTML 1.1, which are the primary two web standards involved in web page creation.