Index of Attributes 

Legend: Deprecated, Loose DTD, Frameset DTD
NameRelated ElementsTypeDefaultDepr.DTDComment
abbr TD, TH %Text; #IMPLIED   abbreviation for header cell 
accept-charset FORM %Charsets; #IMPLIED   list of supported charsets 
accept INPUT %ContentTypes; #IMPLIED   list of MIME types for file upload 
accesskey A, AREA, BUTTON, INPUT, LABEL, LEGEND %Character; #IMPLIED   accessibility key character 
action FORM %URL; #REQUIRED   server-side form handler 
align CAPTION %CAlign; #IMPLIED DLrelative to table 
align APPLET, IFRAME, IMG, INPUT, OBJECT %IAlign; #IMPLIED DLvertical or horizontal alignment 
align LEGEND %LAlign; #IMPLIED DLrelative to fieldset 
align TABLE %TAlign; #IMPLIED DLtable position relative to window 
align HR (left | center | right) #IMPLIED DL  
align DIV, H1, H2, H3, H4, H5, H6, P (left | center | right | justify) #IMPLIED DLalign, text alignment 
align COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR (left | center | right | justify | char) #IMPLIED     
alink BODY %Color; #IMPLIED DLcolor of selected links 
alt APPLET %Text; #IMPLIED DLshort description 
alt AREA, IMG %Text; #REQUIRED   short description 
alt INPUT CDATA #IMPLIED   short description 
archive OBJECT %URL; #IMPLIED   space separated archive list 
archive APPLET CDATA #IMPLIED DLcomma separated archive list 
axis TD, TH CDATA #IMPLIED   names groups of related headers 
background BODY %URL; #IMPLIED DLtexture tile for document background 
bgcolor TABLE %Color; #IMPLIED DLbackground color for cells 
bgcolor TR %Color; #IMPLIED DLbackground color for row 
bgcolor TD, TH %Color; #IMPLIED DLcell background color 
bgcolor BODY %Color; #IMPLIED DLdocument background color 
border IMG, OBJECT %Length; #IMPLIED DLlink border width 
border TABLE CDATA #IMPLIED   controls frame width around table 
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, DIV, LINK, SCRIPT, SPAN %Charset; #IMPLIED   char encoding of linked resource 
checked INPUT (checked) #IMPLIED   for radio buttons and check boxes 
cite BLOCKQUOTE, Q %URL; #IMPLIED   URL for source document or msg 
cite DEL, INS %URL; #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 %URL; #IMPLIED   identifies an implementation 
clear BR (left | all | right | none) none DLcontrol of text flow 
code APPLET CDATA #IMPLIED DLapplet class file 
codebase OBJECT %URL; #IMPLIED   base URL for classid, data, archive 
codebase APPLET %URL; #IMPLIED DLoptional base URL for applet 
codetype OBJECT %ContentType; #IMPLIED   content type for code 
color BASEFONT, FONT %Color; #IMPLIED DL"#RRGGBB" in hex, e.g. red: "#FF0000" 
cols FRAMESET %MultiLengths; #IMPLIED  Flist of lengths. Default: 100% (1 col) 
cols TEXTAREA NUMBER #REQUIRED     
colspan TD, TH NUMBER 1   number of cols spanned by cell 
compact DIR, MENU (compact) #IMPLIED DL  
compact DL, OL, UL (compact) #IMPLIED DLreduced interitem spacing 
content META CDATA #REQUIRED   associated information 
coords AREA %Coords; #IMPLIED   comma separated list of lengths 
coords A %Coords; #IMPLIED   for use with OBJECT SHAPES 
data OBJECT %URL; #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, HR, 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   control is unavailable in this context 
enctype FORM %ContentType; "application/x-www- form-urlencoded"     
export OBJECT (export) #IMPLIED   export shapes to parent 
face BASEFONT, FONT CDATA #IMPLIED DLcomma separated list of font names 
for LABEL IDREF #IMPLIED   matches field ID value 
frame TABLE %TFrame; #IMPLIED   which parts of table frame to include 
frameborder FRAME, IFRAME (1 | 0) 1  Frequest frame borders? 
headers TD, TH IDREFS #IMPLIED   list of id's for header cells 
height IFRAME %Length; #IMPLIED  Lframe height 
height IMG, OBJECT %Length; #IMPLIED   override height 
height APPLET %Length; #REQUIRED DLinitial height 
height TD, TH %Pixels; #IMPLIED DLheight for cell 
href A, AREA, DIV, LINK, SPAN %URL; #IMPLIED   URL for linked resource 
href BASE %URL; #IMPLIED   URL that acts as base URL 
hreflang A, DIV, LINK, SPAN %LanguageCode; #IMPLIED   language code 
hspace APPLET, IMG, OBJECT %Pixels; #IMPLIED DLhorizontal 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 IMG (ismap) #IMPLIED   use server-side image map 
label OPTION %Text; #IMPLIED   for use in hierarchical menus 
label OPTGROUP %Text; #REQUIRED   for use in hierarchical menus 
lang All elements but APPLET, BASE, BASEFONT, BR, FRAME, FRAMESET, HR, IFRAME, PARAM, SCRIPT %LanguageCode; #IMPLIED   language code 
language SCRIPT CDATA #IMPLIED   predefined script language name 
link BODY %Color; #IMPLIED DLcolor of links 
longdesc IMG %URL; #IMPLIED   link to long description (complements alt) 
longdesc FRAME, IFRAME %URL; #IMPLIED  Flink to long description (complements title) 
marginheight FRAME, IFRAME %Pixels; #IMPLIED  Fmargin height in pixels 
marginwidth FRAME, IFRAME %Pixels; #IMPLIED  Fmargin widths in pixels 
maxlength INPUT NUMBER #IMPLIED   max chars for text fields 
media STYLE %MediaDesc; #IMPLIED   designed for use with these media 
media DIV, LINK, SPAN %MediaDesc; #IMPLIED   for rendering on these media 
method FORM (GET | POST) GET   HTTP method used to submit the form 
multiple SELECT (multiple) #IMPLIED   default is single selection 
name TEXTAREA CDATA #IMPLIED     
name APPLET CDATA #IMPLIED DLallows applets to find each other 
name SELECT CDATA #IMPLIED   field name 
name BUTTON CDATA #IMPLIED   for scripting/forms as submit button 
name FRAME, IFRAME CDATA #IMPLIED  Fname of frame for targetting 
name A CDATA #IMPLIED   named link end 
name INPUT, OBJECT CDATA #IMPLIED   submit as part of form 
name MAP CDATA #REQUIRED   name of image map for refs by usemap 
name PARAM CDATA #REQUIRED   property name 
name META NAME #IMPLIED   metainformation name 
nohref AREA (nohref) #IMPLIED   this region has no action 
noresize FRAME (noresize) #IMPLIED  Fallow users to resize frames? 
noshade HR (noshade) #IMPLIED DL  
nowrap TD, TH (nowrap) #IMPLIED DLsuppress word wrap 
object APPLET CDATA #IMPLIED DLserialized applet file 
onblur A, AREA, BUTTON, INPUT, LABEL, SELECT, TEXTAREA %Script; #IMPLIED   the element lost the focus 
onchange INPUT, SELECT, TEXTAREA %Script; #IMPLIED   the element value was changed 
onclick All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE %Script; #IMPLIED   a pointer button was clicked 
ondblclick All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE %Script; #IMPLIED   a pointer button was double clicked 
onfocus A, AREA, BUTTON, INPUT, LABEL, SELECT, TEXTAREA %Script; #IMPLIED   the element got the focus 
onkeydown All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE %Script; #IMPLIED   a key was pressed down 
onkeypress All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE %Script; #IMPLIED   a key was pressed and released 
onkeyup All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE %Script; #IMPLIED   a key was released 
onload FRAMESET %Script; #IMPLIED  Fall the frames have been loaded 
onload BODY %Script; #IMPLIED   the document has been loaded 
onmousedown All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE %Script; #IMPLIED   a pointer button was pressed down 
onmousemove All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE %Script; #IMPLIED   a pointer was moved within 
onmouseout All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE %Script; #IMPLIED   a pointer was moved away 
onmouseover All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE %Script; #IMPLIED   a pointer was moved onto 
onmouseup All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE %Script; #IMPLIED   a pointer button was released 
onreset FORM %Script; #IMPLIED   the form was reset 
onselect INPUT, TEXTAREA %Script; #IMPLIED   some text was selected 
onsubmit FORM %Script; #IMPLIED   the form was submitted 
onunload FRAMESET %Script; #IMPLIED  Fall the frames have been removed 
onunload BODY %Script; #IMPLIED   the document has been removed 
profile HEAD %URL; #IMPLIED   named dictionary of meta info 
prompt ISINDEX %Text; #IMPLIED DLprompt message 
readonly TEXTAREA (readonly) #IMPLIED     
readonly INPUT (readonly) #IMPLIED   for text and passwd 
rel A, DIV, LINK, SPAN %LinkTypes; #IMPLIED   forward link types 
repeat COL NUMBER 1   repeat count for COL 
rev A, DIV, LINK, SPAN %LinkTypes; #IMPLIED   reverse link types 
rows FRAMESET %MultiLengths; #IMPLIED  Flist of lengths. Default: 100% (1 row) 
rows TEXTAREA NUMBER #REQUIRED     
rowspan TD, TH NUMBER 1   number of rows spanned by cell 
rules TABLE %TRules; #IMPLIED   rulings between rows and cols 
scheme META CDATA #IMPLIED   select form of content 
scope TD, TH %Scope; #IMPLIED   scope covered by header cells 
scrolling FRAME, IFRAME (yes | no | auto) auto  Fscrollbar or none 
selected OPTION (selected) #IMPLIED     
shape AREA %Shape; rect   controls interpretation of coords 
shape A %Shape; rect   for use with OBJECT SHAPES 
shapes OBJECT (shapes) #IMPLIED   object has shaped hypertext links 
size HR %Pixels; #IMPLIED DL  
size FONT CDATA #IMPLIED DL[+|-]nn e.g. size="+1", size="4" 
size INPUT CDATA #IMPLIED   specific to each type of field 
size BASEFONT CDATA #REQUIRED DLbase font size for FONT elements 
size SELECT NUMBER #IMPLIED   rows visible 
span COLGROUP NUMBER 1   default number of columns in group 
src SCRIPT %URL; #IMPLIED   URL for an external script 
src INPUT %URL; #IMPLIED   for fields with images 
src FRAME, IFRAME %URL; #IMPLIED  Fsource of frame content 
src IMG %URL; #REQUIRED   URL of image to embed 
standby OBJECT %Text; #IMPLIED   message to show while loading 
start OL NUMBER #IMPLIED DLstarting sequence number 
style All elements but BASE, BASEFONT, HEAD, HTML, META, PARAM, SCRIPT, STYLE, TITLE CDATA #IMPLIED   associated style info 
summary TABLE %Text; #IMPLIED   purpose/structure for speech output 
tabindex A, AREA, BUTTON, INPUT, OBJECT, SELECT, TEXTAREA NUMBER #IMPLIED   position in tabbing order 
target A, AREA, BASE, DIV, FORM, LINK, SPAN %FrameTarget; #IMPLIED   render in this frame 
text BODY %Color; #IMPLIED DLdocument text color 
title STYLE %Text; #IMPLIED   advisory title 
title All elements but BASE, BASEFONT, HEAD, HTML, META, PARAM, SCRIPT, STYLE, TITLE %Text; #IMPLIED   advisory title/amplification 
type A, DIV, LINK, SPAN %ContentType; #IMPLIED   advisory content type 
type OBJECT %ContentType; #IMPLIED   content type for data 
type PARAM %ContentType; #IMPLIED   content type for value when valuetype=ref 
type SCRIPT %ContentType; #REQUIRED   content type of script language 
type STYLE %ContentType; #REQUIRED   content type of style language 
type INPUT %InputType; TEXT   what kind of widget is needed 
type LI %LIStyle; #IMPLIED DLlist item style 
type OL %OLStyle; #IMPLIED DLnumbering style 
type UL %ULStyle; #IMPLIED DLbullet style 
type BUTTON (button | submit | reset) submit   for use as form submit/reset button 
usemap IMG, INPUT, OBJECT %URL; #IMPLIED   use client-side image map 
valign COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR (top | middle | bottom | baseline) #IMPLIED   vertical alignment in cells 
value OPTION CDATA #IMPLIED   defaults to element content 
value BUTTON CDATA #IMPLIED   gets passed to server when submitted 
value PARAM CDATA #IMPLIED   property value 
value INPUT CDATA #IMPLIED   required for radio and checkboxes 
value LI NUMBER #IMPLIED DLreset sequence number 
valuetype PARAM (DATA | REF | OBJECT) DATA   How to interpret value 
version HTML CDATA %HTML.Version; DLConstant 
vlink BODY %Color; #IMPLIED DLcolor of visited links 
vspace APPLET, IMG, OBJECT %Pixels; #IMPLIED DLvertical gutter 
width HR %Length; #IMPLIED DL  
width IFRAME %Length; #IMPLIED  Lframe width 
width IMG, OBJECT %Length; #IMPLIED   override width 
width APPLET %Length; #REQUIRED DLinitial width 
width COL %MultiLength; #IMPLIED   column width specification 
width COLGROUP %MultiLength; #IMPLIED   default width for enclosed COLs 
width TABLE %Pixels; #IMPLIED   table width relative to window 
width TD, TH %Pixels; #IMPLIED DLwidth for cell 
width PRE NUMBER #IMPLIED DL