"http://www.w3.org/TR/html4/loose.dtd"> XHTML 1.0 Strict doctype bez deklaracji XML<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> XHTML 1.0 Transitional doctype bez deklaracji XML<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> XHTML 1.0 Strict doctype z deklaracją XML<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> XHTML 1.0 Transitional doctype z deklaracją XML<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> ISO HTML 2000 version doctype, forma skrócona<!DOCTYPE HTML PUBLIC "ISO/IEC 15445:2000//DTD HTML//EN"> ISO HTML 2000 version doctype, forma pełna<!DOCTYPE HTML PUBLIC "ISO/IEC 15445:2000//DTD HyperText Markup Language//EN"> ISO HTML 1999 version doctype, forma skrócona<!DOCTYPE HTML PUBLIC "ISO/IEC 15445:1999//DTD HTML//EN"> ISO HTML 1999 version doctype, forma pełna<!DOCTYPE HTML PUBLIC "ISO/IEC 15445:1999//DTD HyperText Markup Language//EN"> HTML 5<!DOCTYPE html>