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
p				O			O
h1
h2
h3
h4
h5
h6
ul
ol
dir				O			O			O				O
menu
pre				O			O
dl
div
center				O			O			O
noscript				O			O
noframes				O			O			O
blockquote				O			O
form				X											X
isindex				X			X
hr				O			O								O
table							O
fieldset				X											X
address				O			O
tt				O
i
b
u				O			O			O				O
s
strike
big				O			O
small
em				O
strong
dfn
code
samp
kbd
var
cite
abbr
acronym
a				X											O
img				O
applet				O			O			O				O
object				O
font				O			O			O				O
basefont
br				O
script				O			O
map				O
q
sub
sup
span
bdo
iframe				X			X							O
input				X											X
select
textarea
label
button
ins				O
del