HTML2.0https://www.w3.org/MarkUp/html-spec/HTML3.2https://www.w3.org/TR/REC-html32HTML4.01https://www.w3.org/TR/html4/HTML5https://www.w3.org/TR/html5/XHTML5https://blog.whatwg.org/xhtml5-in-a-nutshellXHTML1.0https://www.w3.org/TR/xhtml1/XHTML1.1https://www.w3.org/TR/xhtml11/doctype.htmlXML1.0https://www.w3.org/TR/REC-xml/XML1.1https://www.w3.org/TR/xml11/WML1.1http://fsinfo.noone.org/~abe/wml11.htmlWML2.0https://en.wikipedia.org/wiki/Wireless_Markup_Language