Document type definition

lastmod 2021-06-08created 2021-01-231 edits

A Document Type Definition (DTD) is a computing term for the definition of a document type in SGML-family markup languages. It is used in SGML as well as HTML, XHTML, XML, and others.

See also

• SGML
• HTML
• XHTML
• XML

Favorite site

• Wikipedia (en) Document type definition