Index of Attributes 

NameRelated ElementsTypeDefaultComment
abbr TD, TH CDATA #IMPLIEDabbreviation for header cell
accept-charset FORM CDATA #IMPLIEDlist of supported charsets
accept INPUT CDATA #IMPLIEDlist of MIME types for file upload
accesskey A, AREA, BUTTON, INPUT, LABEL, LEGEND CDATA #IMPLIEDaccessibility key character
action FORM %URL; #REQUIREDserver-side form handler
align CAPTION %CAlign; #IMPLIEDrelative to table
align APPLET, IFRAME, IMG, INPUT, OBJECT %IAlign; #IMPLIEDvertical or horizontal alignment
align LEGEND %LAlign; #IMPLIEDrelative to fieldset
align TABLE %TAlign; #IMPLIEDtable position relative to window
align DIV, H1, H2, H3, H4, H5, H6, P (left | center | right | justify) #IMPLIEDalign, text alignment
align COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR (left | center | right | justify | char) #IMPLIED
align HR (left | right | center) #IMPLIED
alink BODY CDATA #IMPLIEDbgcolor, text, link, vlink, alink
alt APPLET, INPUT CDATA #IMPLIEDshort description
alt AREA, IMG CDATA #REQUIREDshort description
archive OBJECT %URL; #IMPLIEDspace separated archive list
archive APPLET CDATA #IMPLIEDcomma separated archive list
axes TD, TH IDREFS #IMPLIEDlist of id's for header cells
axis TD, TH CDATA #IMPLIEDnames groups of related headers
background BODY %URL; #IMPLIEDtexture tile for document background
bgcolor TABLE %Color; #IMPLIEDbackground color for cells
bgcolor TR %Color; #IMPLIEDbackground color for row
bgcolor TD, TH %Color; #IMPLIEDcell background color
bgcolor BODY CDATA #IMPLIED
border OBJECT %Length; #IMPLIEDsuggested link border width
border IMG %Pixels; #IMPLIEDsuggested link border width
border TABLE CDATA #IMPLIEDcontrols frame width around table
cellpadding TABLE CDATA #IMPLIEDspacing within cells
cellspacing TABLE CDATA #IMPLIEDspacing between cells
char COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR CDATA #IMPLIEDalignment char, e.g. char=':'
charoff COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR CDATA #IMPLIEDoffset for alignment char
charset A, LINK CDATA #IMPLIEDchar encoding of linked resource
checked INPUT (checked) #IMPLIEDfor radio buttons and check boxes
cite BLOCKQUOTE, Q %URL; #IMPLIEDURL for source document or msg
cite DEL, INS %URL; #IMPLIEDinfo on reason for change
class All elements but BASE, BASEFONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, META, PARAM, SCRIPT, STYLE, TITLE CDATA #IMPLIEDspace separated list of classes
classid OBJECT %URL; #IMPLIEDidentifies an implementation
clear BR (left | all | right | none) nonecontrol of text flow
code APPLET CDATA #IMPLIEDapplet class file
codebase APPLET %URL; #IMPLIEDoptional base URL for applet
codebase OBJECT %URL; #IMPLIEDsome systems need an additional URL
codetype OBJECT %ContentType; #IMPLIEDInternet content type for code
color BASEFONT, FONT CDATA #IMPLIED#RRGGBB in hex, e.g. red: "#FF0000"
cols FRAMESET CDATA #IMPLIEDif not given, default is 1 column
cols TABLE NUMBER #IMPLIEDused for immediate display mode
cols TEXTAREA NUMBER #REQUIRED
colspan TD, TH NUMBER 1number of cols spanned by cell
compact DIR, MENU (compact) #IMPLIED
compact DL, OL, UL (compact) #IMPLIEDreduced interitem spacing
content META CDATA #REQUIREDassociated information
coords AREA %Coords; #IMPLIEDcomma separated list of values
coords A %Coords; #IMPLIEDfor use with OBJECT SHAPES
data OBJECT %URL; #IMPLIEDreference to object's data
datetime DEL, INS CDATA #IMPLIEDwhen changed: ISO date format
declare OBJECT (declare) #IMPLIEDdeclare but don't instantiate flag
dir All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HR, IFRAME, PARAM, SCRIPT (ltr | rtl) #IMPLIEDdirection for weak/neutral text
dir BDO (ltr | rtl) #REQUIREDdirectionality
disabled BUTTON, INPUT, LABEL, OPTION, SELECT, TEXTAREA (disabled) #IMPLIEDcontrol is unavailable in this context
enctype FORM %ContentType; "application/x-www-form-urlencoded"
face BASEFONT, FONT CDATA #IMPLIEDcomma separated list of font names
for LABEL IDREF #IMPLIEDmatches field ID value
frame TABLE %TFrame; #IMPLIEDwhich parts of table frame to include
frameborder FRAME, IFRAME (1 | 0) 1request frame borders?
height IFRAME, OBJECT %Length; #IMPLIEDsuggested height
height TD, TH %Pixels; #IMPLIEDsuggested height for cell
height IMG %Pixels; #IMPLIEDsuggested height in pixels
height APPLET %Pixels; #REQUIREDsuggested height in pixels
href A, LINK %URL; #IMPLIEDURL for linked resource
href AREA %URL; #IMPLIEDthis region acts as hypertext link
href BASE %URL; #REQUIRED
hspace OBJECT %Length; #IMPLIEDsuggested horizontal gutter
hspace APPLET, IMG %Pixels; #IMPLIEDsuggested horizontal gutter
http-equiv META NAME #IMPLIEDHTTP response header name
id All elements but BASE, HEAD, HTML, META, SCRIPT, STYLE, TITLE ID #IMPLIEDdocument-wide unique id
ismap IMG (ismap) #IMPLIEDuse server-side image map
lang All elements but APPLET, BASE, BASEFONT, BR, FONT, FRAME, FRAMESET, HR, IFRAME, PARAM, SCRIPT NAME #IMPLIED[RFC1766] language value
language SCRIPT CDATA #IMPLIEDpredefined script language name
link BODY CDATA #IMPLIED
longdesc IMG %URL; #IMPLIEDlink to long description
marginheight FRAME, IFRAME %Pixels; #IMPLIEDmargin height in pixels
marginwidth FRAME, IFRAME %Pixels; #IMPLIEDmargin widths in pixels
maxlength INPUT NUMBER #IMPLIEDmax chars for text fields
media STYLE CDATA #IMPLIEDdesigned for use with these media
media LINK CDATA #IMPLIEDfor rendering on these media
method FORM (GET | POST) GETHTTP method used to submit the form
multiple SELECT (multiple) #IMPLIEDdefault is single selection
name MAP, TEXTAREA CDATA #IMPLIED
name APPLET CDATA #IMPLIEDallows applets to find each other
name SELECT CDATA #IMPLIEDfield name
name BUTTON CDATA #IMPLIEDfor scripting/forms as submit button
name FRAME, IFRAME CDATA #IMPLIEDname of frame for targetting
name A CDATA #IMPLIEDnamed link end
name INPUT, OBJECT CDATA #IMPLIEDsubmit as part of form
name PARAM CDATA #REQUIREDproperty name
name META NAME #IMPLIEDmetainformation name
nohref AREA (nohref) #IMPLIEDthis region has no action
noresize FRAME (noresize) #IMPLIEDallow users to resize frames?
noshade HR (noshade) #IMPLIED
nowrap TD, TH (nowrap) #IMPLIEDsuppress word wrap
object APPLET CDATA #IMPLIEDserialized applet file
onblur A, BUTTON, INPUT, LABEL, SELECT, TEXTAREA %Script; #IMPLIEDthe element lost the focus
onchange INPUT, SELECT, TEXTAREA %Script; #IMPLIEDthe 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 CDATA #IMPLIEDa 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 CDATA #IMPLIEDa pointer button was double clicked
onfocus A, BUTTON, INPUT, LABEL, SELECT, TEXTAREA %Script; #IMPLIEDthe 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 CDATA #IMPLIEDa 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 CDATA #IMPLIEDa 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 CDATA #IMPLIEDa key was released
onload FRAMESET %Script; #IMPLIEDall the frames have been loaded
onload BODY %Script; #IMPLIEDthe 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 CDATA #IMPLIEDa 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 CDATA #IMPLIEDa 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 CDATA #IMPLIEDa 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 CDATA #IMPLIEDa 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 CDATA #IMPLIEDa pointer button was released
onreset FORM %Script; #IMPLIEDthe form was reset
onselect INPUT, TEXTAREA %Script; #IMPLIEDsome text was selected
onsubmit FORM %Script; #IMPLIEDthe form was submitted
onunload FRAMESET %Script; #IMPLIEDall the frames have been removed
onunload BODY %Script; #IMPLIEDthe document has been removed
profile HEAD %URL; #IMPLIEDnamed dictionary of meta info
prompt ISINDEX CDATA #IMPLIEDprompt message
readonly TEXTAREA (readonly) #IMPLIED
readonly INPUT (readonly) #IMPLIEDfor text and passwd
rel A, LINK CDATA #IMPLIEDforward link types
rev A, LINK CDATA #IMPLIEDreverse link types
rows FRAMESET CDATA #IMPLIEDif not given, default is 1 row
rows TEXTAREA NUMBER #REQUIRED
rowspan TD, TH NUMBER 1number of rows spanned by cell
rules TABLE %TRules; #IMPLIEDrulings between rows and cols
scheme META CDATA #IMPLIEDselect form of content
scrolling FRAME, IFRAME (yes | no | auto) autoscrollbar or none
selected OPTION (selected) #IMPLIED
shape AREA %Shape; rectcontrols interpretation of coords
shape A %Shape; rectfor use with OBJECT SHAPES
shapes OBJECT (shapes) #IMPLIEDobject has shaped hypertext links
size HR %Pixels; #IMPLIED
size FONT CDATA #IMPLIED[+]nn e.g. size="+1", size=4
size INPUT CDATA #IMPLIEDspecific to each type of field
size BASEFONT CDATA #REQUIREDbase font size for FONT elements
size SELECT NUMBER #IMPLIEDrows visible
span COLGROUP NUMBER 1default number of columns in group
span COL NUMBER 1number of columns spanned by group
src SCRIPT %URL; #IMPLIEDURL for an external script
src INPUT %URL; #IMPLIEDfor fields with images
src FRAME, IFRAME %URL; #IMPLIEDsource of frame content
src IMG %URL; #REQUIREDURL of image to embed
standby OBJECT CDATA #IMPLIEDmessage to show while loading
start OL NUMBER #IMPLIEDstarting sequence number
style All elements but BASE, BASEFONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, META, PARAM, SCRIPT, STYLE, TITLE CDATA #IMPLIEDassociated style info
summary TABLE CDATA #IMPLIEDpurpose/structure for speech o/p
tabindex A, AREA, BUTTON, INPUT, OBJECT, SELECT, TEXTAREA NUMBER #IMPLIEDposition in tabbing order
target AREA, BASE, LINK CDATA #IMPLIEDwhere to render linked resource
target A CDATA #IMPLIEDwhere to render resource
target FORM CDATA #IMPLIEDwhere to render result
text BODY CDATA #IMPLIED
title STYLE CDATA #IMPLIEDadvisory title
title FRAME, FRAMESET, IFRAME CDATA #IMPLIEDadvisory title as for anchors
title All elements but BASE, BASEFONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, META, PARAM, SCRIPT, STYLE, TITLE CDATA #IMPLIEDadvisory title/amplification
type OBJECT %ContentType; #IMPLIEDInternet content type for data
type LINK %ContentType; #IMPLIEDadvisory Internet content type
type INPUT %InputType; TEXTwhat kind of widget is needed
type LI %LIStyle; #IMPLIEDlist item style
type OL %OLStyle; #IMPLIEDnumbering style
type UL %ULStyle; #IMPLIEDbullet style
type BUTTON (button | submit | reset) submitfor use as form submit/reset button
type SCRIPT CDATA #IMPLIEDInternet content type for script language
type PARAM CDATA #IMPLIEDInternet media type
type STYLE CDATA #REQUIREDInternet content type for style language
usemap OBJECT %URL; #IMPLIEDreference to image map
usemap IMG, INPUT %URL; #IMPLIEDuse client-side image map
valign COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR (top | middle | bottom | baseline) #IMPLIEDvertical alignment in cells
value OPTION CDATA #IMPLIEDdefaults to element content
value BUTTON CDATA #IMPLIEDgets passed to server when submitted
value PARAM CDATA #IMPLIEDproperty value
value INPUT CDATA #IMPLIEDrequired for radio and checkboxes
value LI NUMBER #IMPLIEDreset sequence number
valuetype PARAM (DATA | REF | OBJECT) DATAHow to interpret value
version HTML CDATA -//W3C//DTD HTML 4.0 Transitional//ENConstant
vlink BODY CDATA #IMPLIED
vspace OBJECT %Length; #IMPLIEDsuggested vertical gutter
vspace APPLET, IMG %Pixels; #IMPLIEDsuggested vertical gutter
width HR %Length; #IMPLIED
width IFRAME, OBJECT %Length; #IMPLIEDsuggested width
width TD, TH %Pixels; #IMPLIEDsuggested width for cell
width IMG %Pixels; #IMPLIEDsuggested width in pixels
width APPLET %Pixels; #REQUIREDsuggested width in pixels
width COL CDATA #IMPLIEDcolumn width specification
width COLGROUP CDATA #IMPLIEDdefault width for enclosed COLs
width TABLE CDATA #IMPLIEDtable width relative to window
width PRE NUMBER #IMPLIED