Elements only in HTML4 Transitional:
applet
basefont
center
dir
frame
frameset
isindex
noframes
Elements only in HTML4:
acronym
applet
basefont
big
center
dir
frame
frameset
isindex
noframes
s
strike
sub
sup
tt
u
Elements only in HTML5:
article
aside
audio
canvas
command
datagrid
datalist
details
dialog
embed
event-source
figure
footer
header
m
meter
nav
output
progress
section
source
time
video
Elements only in HTML5 and HTML4 Transitional:
font
iframe
menu
Ignoring removal of attribute 'style', and addition of HTML5 global attributes:
Elements not new in HTML5:
a:
Attributes only in HTML4 (dropped by HTML5):
accesskey
charset
coords
name
rev
shape
Attributes only in HTML5 (added by HTML5):
media
ping
Attributes only in HTML5 and HTML4 Transitional (deprecated by HTML4, restored by HTML5):
target
abbr:
address:
area:
Attributes only in HTML4 (dropped by HTML5):
accesskey
nohref
Attributes only in HTML5 (added by HTML5):
hreflang
media
ping
rel
type
Attributes only in HTML5 and HTML4 Transitional (deprecated by HTML4, restored by HTML5):
target
b:
base:
Attributes only in HTML5 and HTML4 Transitional (deprecated by HTML4, restored by HTML5):
target
bdo:
blockquote:
body:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
alink
background
bgcolor
link
text
vlink
br:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
clear
button:
Attributes only in HTML4 (dropped by HTML5):
accesskey
disabled
name
type
value
caption:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
cite:
code:
col:
Attributes only in HTML4 (dropped by HTML5):
align
char
charoff
valign
width
colgroup:
Attributes only in HTML4 (dropped by HTML5):
align
char
charoff
valign
width
dd:
del:
dfn:
div:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
dl:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
compact
dt:
em:
fieldset:
font:
Attributes only in HTML5 and HTML4 Transitional (deprecated by HTML4, restored by HTML5):
color
face
size
style
form:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
target
Attributes only in HTML4 (dropped by HTML5):
accept
accept-charset
action
enctype
method
name
onreset
h1:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
h2:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
h3:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
h4:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
h5:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
h6:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
head:
Attributes only in HTML4 (dropped by HTML5):
profile
hr:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
noshade
size
width
html:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
version
i:
iframe:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
frameborder
height
longdesc
marginheight
marginwidth
name
scrolling
width
Attributes only in HTML5 and HTML4 Transitional (deprecated by HTML4, restored by HTML5):
src
img:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
border
hspace
vspace
Attributes only in HTML4 (dropped by HTML5):
longdesc
name
input:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
Attributes only in HTML4 (dropped by HTML5):
accept
accesskey
alt
checked
disabled
ismap
maxlength
name
readonly
size
src
type
usemap
value
ins:
kbd:
label:
Attributes only in HTML4 (dropped by HTML5):
accesskey
for
legend:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
Attributes only in HTML4 (dropped by HTML5):
accesskey
li:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
type
value
link:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
target
Attributes only in HTML4 (dropped by HTML5):
charset
rev
map:
Attributes only in HTML4 (dropped by HTML5):
name
menu:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
compact
Attributes only in HTML5 (added by HTML5):
autosubmit
label
type
meta:
Attributes only in HTML4 (dropped by HTML5):
scheme
Attributes only in HTML5 (added by HTML5):
charset
noscript:
object:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
border
hspace
vspace
Attributes only in HTML4 (dropped by HTML5):
archive
classid
codebase
codetype
declare
name
standby
ol:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
compact
type
Attributes only in HTML5 and HTML4 Transitional (deprecated by HTML4, restored by HTML5):
start
optgroup:
Attributes only in HTML4 (dropped by HTML5):
disabled
label
option:
Attributes only in HTML4 (dropped by HTML5):
disabled
label
selected
value
p:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
param:
Attributes only in HTML4 (dropped by HTML5):
type
valuetype
pre:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
width
q:
samp:
script:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
language
Attributes only in HTML4 (dropped by HTML5):
charset
event
for
Attributes only in HTML5 (added by HTML5):
async
select:
Attributes only in HTML4 (dropped by HTML5):
disabled
multiple
name
size
small:
span:
strong:
style:
Attributes only in HTML5 (added by HTML5):
scoped
table:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
align
bgcolor
Attributes only in HTML4 (dropped by HTML5):
border
cellpadding
cellspacing
datapagesize
frame
rules
summary
width
tbody:
Attributes only in HTML4 (dropped by HTML5):
align
char
charoff
valign
td:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
bgcolor
height
nowrap
width
Attributes only in HTML4 (dropped by HTML5):
abbr
align
axis
char
charoff
headers
scope
valign
textarea:
Attributes only in HTML4 (dropped by HTML5):
accesskey
cols
disabled
name
readonly
rows
tfoot:
Attributes only in HTML4 (dropped by HTML5):
align
char
charoff
valign
th:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
bgcolor
height
nowrap
width
Attributes only in HTML4 (dropped by HTML5):
abbr
align
axis
char
charoff
headers
valign
thead:
Attributes only in HTML4 (dropped by HTML5):
align
char
charoff
valign
title:
tr:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
bgcolor
Attributes only in HTML4 (dropped by HTML5):
align
char
charoff
valign
ul:
Attributes only in HTML4 Transitional (deprecated by HTML4, dropped by HTML5):
compact
type
var: