HTML 2.0 (RFC 1868)	HTML 2.x (RFC 2070)	HTML 3.2	HTML 4.01 Transitional / Frameset	HTML 4.01 Strict	ISO-HTML	XHTML 1.0 FE Transitional	XHTML 1.0 FE Frameset	XHTML 1.0 FE Strict	XHTML 1.0 SE Transitional	XHTML 1.0 SE Frameset	XHTML 1.0 SE Strict	XHTML 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
h1		O					O
h2
h3
h4
h5
h6
a		O					O			O				O
img
br
em
strong
code
samp
kbd
var
cite
tt
b
i
span		O		O
q
bdo
sup		O
sub
p		O
ul
ol
dir		O					O			O				O
menu
dl		O
pre
xmp		O
listing
blockquote		O
form
isindex		O					O			O				O
hr		O
address		O					O
u			O				O			O				O
strike
big
small
dfn
applet
font
basefont
script			O				O
map			O				O			O				O
input
select
textarea
div			O
center			O				O			O				O
table			O
noscript				O			O
noframes				O			O			O				O
fieldset				O
s				O			O			O				O
abbr
acronym
object
iframe
label
button
ins				O
del
ruby														O