Doctype NS6 Gecko pre-1.0.1 Gecko 1.0.1+ & Safari Opera 9 Opera 7.5 IE 7 & Opera 7.10 IE 6 & Opera 7.0 IE Mac Konq 3.2 Brak HTML 3.2 doctype<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> HTML 4.0 Strict doctype bez identyfikatora DTD<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN"> HTML 4.01 Strict doctype bez identyfikatora DTD<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> HTML 4.0 Strict doctype z identyfikatorem DTD<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/html4/strict.dtd"> HTML 4.01 Strict doctype z identyfikatorem DTD<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> HTML 4.0 Transitional doctype bez identyfikatora DTD<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> HTML 4.01 Transitional doctype bez identyfikatora DTD<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> HTML 4.01 Transitional doctype z identyfikatorem DTD<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> HTML 4.01 Transitional doctype z identyfikatorem DTD<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd"> HTML 4.0 Transitional doctype z identyfikatorem DTD<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"