Index of Attributes 

Legend: Deprecated, Loose DTD, Frameset DTD

Name Related Elements Type Default Depr. DTD Comment
abbr TD, TH %Text; #IMPLIED     abbreviation for header cell
accept-charset FORM %Charsets; #IMPLIED     list of supported charsets
accept FORM, INPUT %ContentTypes; #IMPLIED     list of MIME types for file upload
accesskey A, AREA, BUTTON, INPUT, LABEL, LEGEND, TEXTAREA %Character; #IMPLIED     accessibility key character
action FORM %URI; #REQUIRED     server-side form handler
align CAPTION %CAlign; #IMPLIED D L relative to table
align APPLET, IFRAME, IMG, INPUT, OBJECT %IAlign; #IMPLIED D L vertical or horizontal alignment
align LEGEND %LAlign; #IMPLIED D L relative to fieldset
align TABLE %TAlign; #IMPLIED D L table position relative to window
align HR (left | center | right) #IMPLIED D L  
align DIV, H1, H2, H3, H4, H5, H6, P (left | center | right | justify) #IMPLIED D L align, text alignment
align COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR (left | center | right | justify | char) #IMPLIED      
alink BODY %Color; #IMPLIED D L color of selected links
alt APPLET %Text; #IMPLIED D L short description
alt AREA, IMG %Text; #REQUIRED     short description
alt INPUT CDATA #IMPLIED     short description
archive APPLET CDATA #IMPLIED D L comma-separated archive list
archive OBJECT CDATA #IMPLIED     space-separated list of URIs
axis TD, TH CDATA #IMPLIED     comma-separated list of related headers
background BODY %URI; #IMPLIED D L texture tile for document background
bgcolor TABLE %Color; #IMPLIED D L background color for cells
bgcolor TR %Color; #IMPLIED D L background color for row
bgcolor TD, TH %Color; #IMPLIED D L cell background color
bgcolor BODY %Color; #IMPLIED D L document background color
border TABLE %Pixels; #IMPLIED     controls frame width around table
border IMG, OBJECT %Pixels; #IMPLIED D L link border width
cellpadding TABLE %Length; #IMPLIED     spacing within cells
cellspacing TABLE %Length; #IMPLIED     spacing between cells
char COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR %Character; #IMPLIED     alignment char, e.g. char=':'
charoff COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR %Length; #IMPLIED     offset for alignment char
charset A, LINK, SCRIPT %Charset; #IMPLIED     char encoding of linked resource
checked INPUT (checked) #IMPLIED     for radio buttons and check boxes
cite BLOCKQUOTE, Q %URI; #IMPLIED     URI for source document or msg
cite DEL, INS %URI; #IMPLIED     info on reason for change
class All elements but BASE, BASEFONT, HEAD, HTML, META, PARAM, SCRIPT, STYLE, TITLE CDATA #IMPLIED     space-separated list of classes
classid OBJECT %URI; #IMPLIED     identifies an implementation
clear BR (left | all | right | none) none D L control of text flow
code APPLET CDATA #IMPLIED D L applet class file
codebase OBJECT %URI; #IMPLIED     base URI for classid, data, archive
codebase APPLET %URI; #IMPLIED D L optional base URI for applet
codetype OBJECT %ContentType; #IMPLIED     content type for code
color BASEFONT, FONT %Color; #IMPLIED D L text color
cols FRAMESET %MultiLengths; #IMPLIED   F list of lengths, default: 100% (1 col)
cols TEXTAREA NUMBER #REQUIRED      
colspan TD, TH NUMBER 1     number of cols spanned by cell
compact DIR, DL, MENU, OL, UL (compact) #IMPLIED D L reduced interitem spacing
content META CDATA #REQUIRED     associated information
coords AREA %Coords; #IMPLIED     comma-separated list of lengths
coords A %Coords; #IMPLIED     for use with client-side image maps
data OBJECT %URI; #IMPLIED     reference to object's data
datetime DEL, INS %Datetime; #IMPLIED     date and time of change
declare OBJECT (declare) #IMPLIED     declare but don't instantiate flag
defer SCRIPT (defer) #IMPLIED     UA may defer execution of script
dir All elements but APPLET, BASE, BASEFONT, BDO, BR, FRAME, FRAMESET, IFRAME, PARAM, SCRIPT (ltr | rtl) #IMPLIED     direction for weak/neutral text
dir BDO (ltr | rtl) #REQUIRED     directionality
disabled BUTTON, INPUT, OPTGROUP, OPTION, SELECT, TEXTAREA (disabled) #IMPLIED     unavailable in this context
enctype FORM %ContentType; "application/x-www- form-urlencoded"      
face BASEFONT, FONT CDATA #IMPLIED D L comma-separated list of font names
for LABEL IDREF #IMPLIED     matches field ID value
frame TABLE %TFrame; #IMPLIED     which parts of frame to render
frameborder FRAME, IFRAME (1 | 0) 1   F request frame borders?
headers TD, TH IDREFS #IMPLIED     list of id's for header cells
height IFRAME %Length; #IMPLIED   L frame height
height TD, TH %Length; #IMPLIED D L height for cell
height IMG, OBJECT %Length; #IMPLIED     override height
height APPLET %Length; #REQUIRED D L initial height
href A, AREA, LINK %URI; #IMPLIED     URI for linked resource
href BASE %URI; #IMPLIED     URI that acts as base URI
hreflang A, LINK %LanguageCode; #IMPLIED     language code
hspace APPLET, IMG, OBJECT %Pixels; #IMPLIED D L horizontal gutter
http-equiv META NAME #IMPLIED     HTTP response header name
id All elements but BASE, HEAD, HTML, META, SCRIPT, STYLE, TITLE ID #IMPLIED     document-wide unique id
ismap