<!-- This is the HTML 4.01 Frameset DTD, which should be used for documents with frames. This DTD is identical to the HTML 4.01 Transitional DTD except for the content model of the "HTML" element: in frameset documents, the "FRAMESET" element replaces the "BODY" element. Draft: $Date: 2018年03月20日 02:36:52 $ Authors: Dave Raggett <dsr@w3.org> Arnaud Le Hors <lehors@w3.org> Ian Jacobs <ij@w3.org> Further information about HTML 4.01 is available at: http://www.w3.org/TR/1999/REC-html401-19991224. --> <!ENTITY % HTML.Version "-//W3C//DTD HTML 4.01 Frameset//EN" -- Typical usage: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd"> <html> <head> ... </head> <frameset> ... </frameset> </html> --> <!ENTITY % HTML.Frameset "INCLUDE"> <!ENTITY % HTML4.dtd PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> %HTML4.dtd;