Variable: org-html-doctype
org-html-doctype is a customizable variable defined in ox-html.el.gz.
Value
"xhtml-strict"
Documentation
Document type definition to use for exported HTML files.
Can be set with the in-buffer HTML_DOCTYPE property or for publishing, with :html-doctype.
This variable was added, or its default value changed, in Org version
8.0.
Source Code
;; Defined in /usr/src/emacs/lisp/org/ox-html.el.gz
(defcustom org-html-doctype "xhtml-strict"
"Document type definition to use for exported HTML files.
Can be set with the in-buffer HTML_DOCTYPE property or for
publishing, with :html-doctype."
:group 'org-export-html
:version "24.4"
:package-version '(Org . "8.0")
:type (append
'(choice)
(mapcar (lambda (x) `(const ,(car x))) org-html-doctype-alist)
'((string :tag "Custom doctype" ))))