HTML 2.0 (RFC 1868)HTML 2.x (RFC 2070)HTML 3.2HTML 4.01 Transitional / FramesetHTML 4.01 StrictISO-HTMLXHTML 1.0 FE TransitionalXHTML 1.0 FE FramesetXHTML 1.0 FE StrictXHTML 1.0 SE TransitionalXHTML 1.0 SE FramesetXHTML 1.0 SE StrictXHTML 1.1 (m12n 1.0 FE/SE DTD)XHTML 1.1 + Legacy (m12n 1.0 FE/SE DTD)XHTML m12n 1.0 FE/SE Abstract
h1OO
h2
h3
h4
h5
h6
aOOO
img
br
em
strong
code
samp
kbd
var
cite
tt
b
i
pO
ul
ol
dirOOOO
menu
dlO
pre
xmpO
listing
blockquoteO
formXX
isindexOOO
hrOO
addressOO
inputOOO
select
textarea
spanOO
q
bdo
supO
sub
uO
strike
big
small
dfn
applet
font
basefont
scriptOO
mapOOO
divO
centerOOO
tableO
noscriptOO
noframesOOO
fieldsetO
sOOO
abbr
acronym
object
iframe
label
button
insO
del