Elements

Filter

Attributes

Filter

Key

4.01 only: attribute applies to the following elements in HTML 4.01 only;
HTML5 only: attribute applies to the following elements in HTML5 only;
Nonstandard: Attribute is not part of any specification, but is supported in browsers;
D: deprecated in HTML 4.01;
R: Required

abbr (4.01 only)
accept (4.01 only)
accept
accept-charset
accesskey (4.01 only)
accesskey (HTML5 only)
  • All elements in HTML5

action
align (4.01 only)
alink
alt
alt (4.01 only)
alt (HTML5 only)
archive (4.01 only)
async (HTML5 only)
autocomplete
autofocus (HTML5 only)
autoplay (HTML5 only)
axis (4.01 only)
background (4.01 only)
bgcolor (4.01 only)
border (4.01 only)
cellpadding (4.01 only)
cellspacing (4.01 only)
challenge (HTML5 only)
char (4.01 only)
charoff (4.01 only)
charset (4.01 only)
charset (HTML5 only)
charset
checked (HTML5 only)
checked
cite
cite (HTML5 only)
class (4.01 only)
  • All elements except base, basefont, head, html, meta, param, script, style, title

class (HTML5 only)
  • All elements in HTML5

classid (4.01 only)
clear (4.01 only)
code (4.01 only)
codebase (4.01 only)
codetype (4.01 only)
color (4.01 only)
cols (4.01 only)
cols
colspan
compact
content
contenteditable (HTML5 only)
  • All elements in HTML5

contextmenu (HTML5 only)
  • All elements in HTML5

controls (HTML5 only)
coords (4.01 only)
coords
data
datetime (HTML5 only)
declare (4.01 only)
defer
dir (4.01 only)
  • All elements but applet, base, basefont, br, frame, frameset, iframe, param, script

dir (HTML5 only)
  • All elements in HTML5

dir
disabled
disabled (HTML5 only)
draggable (HTML5 only)
  • All elements in HTML5

enctype
face (4.01 only)
for
for (HTML5 only)
form (HTML5 only)
formaction (HTML5 only)
formenctype (HTML5 only)
formmethod (HTML5 only)
formnovalidate (HTML5 only)
formtarget (HTML5 only)
frame (4.01 only)
frameborder (4.01 only)
headers
height
height (4.01 only)
height (HTML5 only)
hidden (HTML5 only)
  • All elements in HTML5

high (HTML5 only)
href
hreflang
hreflang (HTML5 only)
hspace (4.01 only)
http-equiv
icon (HTML5 only)
id (4.01 only)
  • All elements but base, head, html, meta, script, style, title

id (HTML5 only)
  • All elements in HTML5

ismap
ismap (4.01 only)
keytype (HTML5 only)
label
label (HTML5 only)
lang (4.01 only)
  • All elements but applet, base, basefont, br, frame, frameset, iframe, param, script

lang (HTML5 only)
  • All elements in HTML5

language (4.01 only)
link (4.01 only)
list (HTML5 only)
longdesc (4.01 only)
loop (HTML5 only)
low (HTML5 only)
lowsrc (Nonstandard)
manifest (HTML5 only)
marginheight (4.01 only)
marginwidth (4.01 only)
max (HTML5 only)
maxlength
maxlength (HTML5 only)
media
media (HTML5 only)
method
min (HTML5 only)
multiple
multiple (HTML5 only)
name
name (4.01 only)
name (HTML5 only)
name (Nonstandard)
nohref (4.01 only)
noresize (4.01 only)
noshade (4.01 only)
novalidate (HTML5 only)
nowrap (4.01 only)
object (4.01 only)
open (HTML5 only)
optimum (HTML5 only)
palette (N)
pattern (HTML5 only)
ping (HTML5 only)
placeholder (HTML5 only)
pluginspage (N)
poster (HTML5 only)
profile (4.01 only)
prompt (4.01 only)
pubdate (HTML5 only)
radiogroup (HTML5 only)
readonly
rel
rel (HTML5 only)
required (HTML5 only)
rev (4.01 only)
reversed (HTML5 only)
rows (4.01 only)
rows
rowspan
rules (4.01 only)
sandbox (HTML5 only)
scheme (4.01 only)
scope (4.01 only)
scope (4.01 only)
scoped (HTML5 only)
scrolling (4.01 only)
seamless (HTML5 only)
selected
shape (4.01 only)
shape
size
size (4.01 only)
sizes (HTML5 only)
span
spellcheck (HTML5 only)
  • All elements in HTML5

src
src (4.01 only)
src (HTML5 only)
srcdoc (HTML5 only)
standby (4.01 only)
start
start (Nonstandard)
step (HTML5 only)
style
  • All elements but base, basefont, head, html, meta, param, script, style, title

style
  • All elements in HTML5

summary
tabindex (4.01 only)
tabindex (HTML5 only)
  • All elements in HTML5

target
target (4.01 only)
text
title (4.01 only)
  • All elements but base, basefont, head, html, meta, param, script, title

title (HTML5 only)
  • All elements (advisory information)

title
title (4.01 only)
title (HTML5 only)
type
type (4.01 only)
type (HTML5 only)
units (N)
usemap
usemap (4.01 only)
valign (4.01 only)
value
value (HTML5 only)
valuetype (4.01 only)
version (4.01 only)
vlink (4.01 only)
vspace (4.01 only)
vspace (Nonstandard)
width
width (4.01 only)
width (HTML5 only)
wrap (HTML5 only)
xml:lang (XHTML only)
xml:space (XHTML 1.0 only)
xmlns (XHTML only)

Characters

Filter

More

Filter

Filter

Done

Filter by Specification

XHTML considerations are noted in both specification views.