... ... The URL used as a system identifier with the public identifier allows the user agent to download the DTD and entity sets as needed. The FPI for the strict HTML 4.0 DTD is: "-//W3C//DTD HTML 4.0//EN" and its URL is: http://www.w3.org/TR/PR-html40/strict.dtd Authors should use the strict DTD unless they need the presentation control for user agents that don't (adequately) support style sheets. If you are writing a frameset document you should use the following FPI: "-//W3C//DTD HTML 4.0 Frameset//EN" with the URL: http://www.w3.org/TR/PR-html40/frameset.dtd The following URLs are supported in relation to HTML 4.0 "http://www.w3.org/TR/PR-html40/strict.dtd" (Strict DTD) "http://www.w3.org/TR/PR-html40/loose.dtd" (Loose DTD) "http://www.w3.org/TR/PR-html40/frameset.dtd" (Frameset DTD) "http://www.w3.org/TR/PR-html40/HTMLlat1.ent" (Latin-1 entities) "http://www.w3.org/TR/PR-html40/HTMLsymbol.ent" (Symbol entities) "http://www.w3.org/TR/PR-html40/HTMLspecial.ent" (Special entities) These URLs point to the latest version of each file. To reference this specific revision use the following URLs: "http://www.w3.org/TR/PR-html40-971107/strict.dtd" "http://www.w3.org/TR/PR-html40-971107/loose.dtd" "http://www.w3.org/TR/PR-html40-971107/frameset.dtd" "http://www.w3.org/TR/PR-html40-971107/HTMLlat1.ent" "http://www.w3.org/TR/PR-html40-971107/HTMLsymbol.ent" "http://www.w3.org/TR/PR-html40-971107/HTMLspecial.ent" --> %HTMLlat1; %HTMLsymbol; %HTMLspecial; ]]> ]]> ]]> ]]> ]]>