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XHTML Summary
This tutorial has taught you how to create stricter and cleaner HTML pages.
You have learned that all XHTML elements must be properly nested, XHTML documents must be well-formed, all tag names must be in lowercase, and that all XHTML elements must be closed.
You have also learned that all XHTML documents must have a DOCTYPE declaration, and that the html, head, title, and body elements must be present.
For more information on XHTML, please look at our
XHTML reference.