... released HTML/ XHTML Elements and Valid DTDsThe following table lists all HTML/ XHTML elements, and defines which doctype declarations (DTDs) each element appear in.Tag HTML 4.01 / XHTML 1.0 XHTML ... attribute inside the < ;html& gt; tag, like this:< ;html lang="en"> < /html& gt;In XHTML, the language is declared inside the < ;html& gt; tag as follows:< ;html xmlns="http://www.w3.org/1999/xhtml" ... which HTML 4.01 / XHTML 1.0 DTD the tag is allowed. S=Strict, T=Transitional, and F=FramesetTag Description DTDBasic <!DOCTYPE> Defines the document type STF< ;html& gt; Defines an HTML...