I know this is a very long writeup, but it's a lot of information. I honestly don't expect anyone to read the whole thing, but feel free to use it as a reference. I have grouped the text into three separate sections, so in case you just want to skip to a section, look for the big headings. The sections are:
- abbr
-
abbreviation for table header cell
Type: Text
Related HTML Tags: td, th
Default Value: #IMPLIED
- accept
-
list of MIME types for file upload
Type: ContentTypes
Related HTML Tags: form, input
Default Value: #IMPLIED
- accept-charset
-
list of supported character sets
Type: Charsets
Related HTML Tags: form
Default Value: #IMPLIED
- accesskey
-
accessibility key character
Type: Character
Related HTML Tags: a, area, button, input, label, legend, textarea
Default Value: #IMPLIED
- action
-
server-side form handler
Type: URI
Related HTML Tags: form
Default Value: #REQUIRED
- align
-
caption alignment relative to table (deprecated)
Type: CAlign
Related HTML Tags: caption
Default Value: #IMPLIED
vertical or horizontal alignment of an object (deprecated)
Type: IAlign
Related HTML Tags: applet, iframe, img, input, object
Default Value: #IMPLIED
legend alignment relative to fieldset (deprecated)
Type: LAlign
Related HTML Tags: legend
Default Value: #IMPLIED
table position relative to window
Type: TAlign
Related HTML Tags: table
Default Value: #IMPLIED
alignment within table cells
Type: Custom (left | center | right | justify | char)
Related HTML Tags: col, colgroup, tbody, td, tfoot, th, thead, tr
Default Value: #IMPLIED
block element alignment (deprecated)
Type: Custom (left | center | right | justify)
Related HTML Tags: div, h1, h2, h3, h4, h5, h6, p
Default Value: #IMPLIED
horizontal rule alignment (deprecated)
Type: Custom (left | center | right)
Related HTML Tags: hr
Default Value: #IMPLIED
- alink (deprecated)
-
color of selected links
Type: Color
Related HTML Tags: body
Default Value: #IMPLIED
- alt
-
short description (deprecated)
Type: Text
Related HTML Tags: applet
Default Value: #IMPLIED
short description
Type: Text
Related HTML Tags: area, img
Default Value: #REQUIRED
short description
Type: CDATA
Related HTML Tags: input
Default Value: #IMPLIED
- archive
-
comma-separated archive list (deprecated)
Type: CDATA
Related HTML Tags: applet
Default Value: #IMPLIED
space-separated list of URIs
Type: CDATA
Related HTML Tags: object
Default Value: #IMPLIED
- axis
-
comma-separated list of related headers
Type: CDATA
Related HTML Tags: td, th
Default Value: #IMPLIED
- background (deprecated)
-
texture tile (image) for document background
Type: URI
Related HTML Tags: body
Default Value: #IMPLIED
- bgcolor (deprecated)
-
document background color
Type: Color
Related HTML Tags: body
Default Value: #IMPLIED
background color for cells
Type: Color
Related HTML Tags: table
Default Value: #IMPLIED
cell background color
Type: Color
Related HTML Tags: td, th
Default Value: #IMPLIED
background color for row
Type: Color
Related HTML Tags: tr
Default Value: #IMPLIED
- border
-
link border width (deprecated)
Type: Pixels
Related HTML Tags: img, object
Default Value: #IMPLIED
controls frame width around table
Type: Pixels
Related HTML Tags: table
Default Value: #IMPLIED
- cellpadding
-
spacing within cells
Type: Length
Related HTML Tags: table
Default Value: #IMPLIED
- cellspacing
-
spacing between cells
Type: Length
Related HTML Tags: table
Default Value: #IMPLIED
- char
-
alignment character; useful for lining up tables of numbers on the decimal point
Type: Character
Related HTML Tags: col, colgroup, tbody, td, tfoot, th, thead, tr
Default Value: #IMPLIED
- charoff
-
offset for alignment char
Type: Length
Related HTML Tags: col, colgroup, tbody, td, tfoot, th, thead, tr
Default Value: #IMPLIED
- charset
-
character encoding of linked resource
Type: Charset
Related HTML Tags: a, link, script
Default Value: #IMPLIED
- checked
-
for radio buttons and checkboxes
Type: Custom (checked)
Related HTML Tags: input
Default Value: #IMPLIED
- cite
-
URI for source document or message
Type: URI
Related HTML Tags: blockquote, q
Default Value: #IMPLIED
info on reason for change
Type: URI
Related HTML Tags: del, ins
Default Value: #IMPLIED
- class
-
space-separated list of classes
Type: CDATA
Related HTML Tags: all elements except base, basefont, head, html, meta,
param, script, style, title
Default Value: #IMPLIED
- classid
-
identifies an implementation (usually source code)
Type: URI
Related HTML Tags: object
Default Value: #IMPLIED
- clear (deprecated)
-
control of text flow following a line break
Type: Custom (left | all | right | none)
Related HTML Tags: br
Default Value: "none"
- code (deprecated)
-
applet class file
Type: CDATA
Related HTML Tags: applet
Default Value: #IMPLIED
- codebase
-
optional base URI for applet (deprecated)
Type: URI
Related HTML Tags: applet
Default Value: #IMPLIED
base URI for classid, data, or archive
Type: URI
Related HTML Tags: object
Default Value: #IMPLIED
- codetype
-
content type for source code
Type: ContentType
Related HTML Tags: object
Default Value: #IMPLIED
- color (deprecated)
-
text color
Type: Color
Related HTML Tags: basefont, font
Default Value: #IMPLIED
- cols
-
list of lengths for frameset
Type: MultiLengths
Related HTML Tags: frameset
Default Value: #IMPLIED
number of text columns in a textarea
Type: NUMBER
Related HTML Tags: textarea
Default Value: #REQUIRED
- colspan
-
number of columns spanned by cell
Type: NUMBER
Related HTML Tags: td, th
Default Value: "1"
- compact (deprecated)
-
reduced inter-item spacing, display list in a compact manner
Type: Custom (compact)
Related HTML Tags: dir, dl, menu, ol, ul
Default Value: #IMPLIED
- content
-
associated information about the document
Type: CDATA
Related HTML Tags: meta
Default Value: #REQUIRED
- coords
-
for use with client-side image maps
Type: Coords
Related HTML Tags: a
Default Value: #IMPLIED
comma-separated list of lengths definint a shape
Type: Coords
Related HTML Tags: area
Default Value: #IMPLIED
- data
-
reference to object's data
Type: URI
Related HTML Tags: object
Default Value: #IMPLIED
- datetime
-
date and time of change
Type: Datetime
Related HTML Tags: del, ins
Default Value: #IMPLIED
- declare
-
declare but don't instantiate flag
Type: Custom (declare)
Related HTML Tags: object
Default Value: #IMPLIED
- defer
-
user agent may defer execution of script
Type: Custom (defer)
Related HTML Tags: script
Default Value: #IMPLIED
- dir
-
direction for weak/neutral text
Type: Custom (ltr | rtl)
Related HTML Tags: all elements except applet, base, basefont, bdo, br,
frame, frameset, iframe, param, script
Default Value: #IMPLIED
directionality
Type: Custom (ltr | rtl)
Related HTML Tags: bdo
Default Value: #REQUIRED
- disabled
-
unavailable in this context
Type: (disabled)
Related HTML Tags: button, input, optgroup, option, select, textarea
Default Value: #IMPLIED
- enctype
-
encoding type
Type: ContentType
Related HTML Tags: form
Default Value: "application/x-www-form-urlencoded"
- face (deprecated)
-
comma-separated list of font names
Type: CDATA
Related HTML Tags: basefont, font
Default Value: #IMPLIED
- for
-
matches field related ID value
Type: IDREF
Related HTML Tags: label
Default Value: #IMPLIED
- frame
-
which parts of frame to render
Type: TFrame
Related HTML Tags: table
Default Value: #IMPLIED
- frameborder
-
request frame borders
Type: Custom (1 | 0)
Related HTML Tags: frame, iframe
Default Value: "1"
- headers
-
list of id's for header cells
Type: IDREFS
Related HTML Tags: td, th
Default Value: #IMPLIED
- height
-
initial applet height (deprecated)
Type: Length
Related HTML Tags: applet
Default Value: #REQUIRED
frame height
Type: Length
Related HTML Tags: iframe
Default Value: #IMPLIED
override height
Type: Length
Related HTML Tags: img, object
Default Value: #IMPLIED
height for cell (deprecated)
Type: Length
Related HTML Tags: td, th
Default Value: #IMPLIED
- href
-
URI for linked resource
Type: URI
Related HTML Tags: a, area, link
Default Value: #IMPLIED
URI that acts as base URI
Type: URI
Related HTML Tags: base
Default Value: #IMPLIED
- hreflang
-
language code for linked resource
Type: LanguageCode
Related HTML Tags: a, link
Default Value: #IMPLIED
- hspace (deprecated)
-
horizontal gutter
Type: Pixels
Related HTML Tags: applet, img, object
Default Value: #IMPLIED
- http-equiv
-
HTTP response header name
Type: NAME
Related HTML Tags: meta
Default Value: #IMPLIED
- id
-
document-wide unique id
Type: ID
Related HTML Tags: all elements except base, head, html, meta, script, style, title
Default Value: #IMPLIED
- ismap
-
use server-side image map
Type: Custom (ismap)
Related HTML Tags: img, input
Default Value: #IMPLIED
- label
-
for use in hierarchical drop-down menus
Type: Text
Related HTML Tags: optgroup
Default Value: #REQUIRED
for use in hierarchical drop-down menus
Type: Text
Related HTML Tags: option
Default Value: #IMPLIED
- lang
-
language code
Type: LanguageCode
Related HTML Tags: all elements except applet, base, basefont, br, frame, frameset, iframe, param, script
Default Value: #IMPLIED
- language (deprecated)
-
predefined script language name (e.g., "VBScript")
Type: CDATA
Related HTML Tags: script
Default Value: #IMPLIED
- link (deprecated)
-
color of links
Type: Color
Related HTML Tags: body
Default Value: #IMPLIED
- longdesc
-
link to long description (complements title)
Type: URI
Related HTML Tags: frame, iframe
Default Value: #IMPLIED
link to long description (complements alt)
Type: URI
Related HTML Tags: img
Default Value: #IMPLIED
- marginheight
-
margin height in pixels
Type: Pixels
Related HTML Tags: frame, iframe
Default Value: #IMPLIED
- marginwidth
-
margin widths in pixels
Type: Pixels
Related HTML Tags: frame, iframe
Default Value: #IMPLIED
- maxlength
-
maximum number of characters for text fields
Type: NUMBER
Related HTML Tags: input (type text only)
Default Value: #IMPLIED
- media
-
describes the media type this link is meant to be viewed on
Type: MediaDesc
Related HTML Tags: link
Default Value: #IMPLIED
designed for use with these media
Type: MediaDesc
Related HTML Tags: style
Default Value: #IMPLIED
- method
-
HTTP method used to submit the form
Type: Custom (GET | POST)
Related HTML Tags: form
Default Value: GET
- multiple
-
allows multiple selection of items in a list
Type: Custom (multiple)
Related HTML Tags: select
Default Value: #IMPLIED
- name
-
named link end (bookmark or inner-document link)
Type: CDATA
Related HTML Tags: a
Default Value: #IMPLIED
allows applets to find each other (deprecated)
Type: CDATA
Related HTML Tags: applet
Default Value: #IMPLIED
name of form field for scripting
Type: CDATA
Related HTML Tags: button, textarea
Default Value: #IMPLIED
name of form for scripting
Type: CDATA
Related HTML Tags: form
Default Value: #IMPLIED
name of frame for targetting
Type: CDATA
Related HTML Tags: frame, iframe
Default Value: #IMPLIED
name of image for scripting
Type: CDATA
Related HTML Tags: img
Default Value: #IMPLIED
submit as part of form
Type: CDATA
Related HTML Tags: input, object
Default Value: #IMPLIED
for reference by usemap
Type: CDATA
Related HTML Tags: map
Default Value: #REQUIRED
property name
Type: CDATA
Related HTML Tags: param
Default Value: #REQUIRED
field name
Type: CDATA
Related HTML Tags: select
Default Value: #IMPLIED
metainformation name
Type: NAME
Related HTML Tags: meta
Default Value: #IMPLIED
- nohref
-
this region of an image map has no action
Type: Custom (nohref)
Related HTML Tags: area
Default Value: #IMPLIED
- noresize
-
allow users to resize frames?
Type: Custom (noresize)
Related HTML Tags: frame
Default Value: #IMPLIED
- noshade (deprecated)
-
use a 3D effect?
Type: Custom (noshade)
Related HTML Tags: hr
Default Value: #IMPLIED
- nowrap (deprecated)
-
suppress word wrap
Type: Custom (nowrap)
Related HTML Tags: td, th
Default Value: #IMPLIED
- object (deprecated)
-
serialized applet file
Type: CDATA
Related HTML Tags: applet
Default Value: #IMPLIED
- onblur
-
the element lost the focus
Type: Script
Related HTML Tags: a, area, button, input, label, select, textarea
Default Value: #IMPLIED
- onchange
-
the element value was changed
Type: Script
Related HTML Tags: input, select, textarea
Default Value: #IMPLIED
- onclick
-
a pointer button was clicked
Type: Script
Related HTML Tags: all elements except applet, base, basefont, bdo, br, font, frame, frameset, head, html, iframe, isindex, meta, param, script, style, title
Default Value: #IMPLIED
- ondblclick
-
a pointer button was double clicked
Type: Script
Related HTML Tags: all elements except applet, base, basefont, bdo, br, font, frame, frameset, head, html, iframe, isindex, meta, param, script, style, title
Default Value: #IMPLIED
- onfocus
-
the element got the focus
Type: Script
Related HTML Tags: a, area, button, input, label, select, textarea
Default Value: #IMPLIED
- onkeydown
-
a key was pressed down
Type: Script
Related HTML Tags: all elements except applet, base, basefont, bdo, br, font, frame, frameset, head, html, iframe, isindex, meta, param, script, style, title
Default Value: #IMPLIED
- onkeypress
-
a key was pressed and released
Type: Script
Related HTML Tags: all elements except applet, base, basefont, bdo, br, font, frame, frameset, head, html, iframe, isindex, meta, param, script, style, title
Default Value: #IMPLIED
- onkeyup
-
a key was released
Type: Script
Related HTML Tags: all elements except applet, base, basefont, bdo, br, font, frame, frameset, head, html, iframe, isindex, meta, param, script, style, title
Default Value: #IMPLIED
- onload
-
the document has been loaded
Type: Script
Related HTML Tags: body
Default Value: #IMPLIED
all the frames have been loaded
Type: Script
Related HTML Tags: frameset
Default Value: #IMPLIED
- onmousedown
-
a pointer button was pressed down
Type: Script
Related HTML Tags: all elements except applet, base, basefont, bdo, br, font, frame, frameset, head, html, iframe, isindex, meta, param, script, style, title
Default Value: #IMPLIED
- onmousemove
-
a pointer was moved within
Type: Script
Related HTML Tags: all elements except applet, base, basefont, bdo, br, font, frame, frameset, head, html, iframe, isindex, meta, param, script, style, title
Default Value: #IMPLIED
- onmouseout
-
a pointer was moved away
Type: Script
Related HTML Tags: all elements except applet, base, basefont, bdo, br, font, frame, frameset, head, html, iframe, isindex, meta, param, script, style, title
Default Value: #IMPLIED
- onmouseover
-
a pointer was moved onto
Type: Script
Related HTML Tags: all elements except applet, base, basefont, bdo, br, font, frame, frameset,
head, html, iframe, isindex, meta, param, script, style, title
Default Value: #IMPLIED
- onmouseup
-
a pointer button was released
Type: Script
Related HTML Tags: all elements except applet, base, basefont, bdo, br, font, frame, frameset,
head, html, iframe, isindex, meta, param, script, style, title
Default Value: #IMPLIED
- onreset
-
the form was reset
Type: Script
Related HTML Tags: form
Default Value: #IMPLIED
- onselect
-
some text was selected
Type: Script
Related HTML Tags: input, textarea
Default Value: #IMPLIED
- onsubmit
-
the form was submitted
Type: Script
Related HTML Tags: form
Default Value: #IMPLIED
- onunload
-
the document has been removed
Type: Script
Related HTML Tags: body
Default Value: #IMPLIED
all the frames have been removed
Type: Script
Related HTML Tags: frameset
Default Value: #IMPLIED
- profile
-
named dictionary of meta info
Type: URI
Related HTML Tags: head
Default Value: #IMPLIED
- prompt (deprecated)
-
prompt message
Type: Text
Related HTML Tags: isindex
Default Value: #IMPLIED
- readonly
-
cause a text or password input type to be readonly
Type: Custom (readonly)
Related HTML Tags: input
Default Value: #IMPLIED
cause the textarea to be readonly
Type: Custom (readonly)
Related HTML Tags: textarea
Default Value: #IMPLIED
- rel
-
forward link types
Type: LinkTypes
Related HTML Tags: a, link
Default Value: #IMPLIED
- rev
-
reverse link types
Type: LinkTypes
Related HTML Tags: a, link
Default Value: #IMPLIED
- rows
-
list of row lengths
Type: MultiLengths
Related HTML Tags: frameset
Default Value: #IMPLIED
number of rows (width in characters) for the textareaType: NUMBER
Related HTML Tags: textarea
Default Value: #REQUIRED
- rowspan
-
number of rows spanned by cell
Type: NUMBER
Related HTML Tags: td, th
Default Value: "1"
- rules
-
rulings between rows and cols
Type: TRules
Related HTML Tags: table
Default Value: #IMPLIED
- scheme
-
select form of content
Type: CDATA
Related HTML Tags: meta
Default Value: #IMPLIED
- scope
-
scope covered by header cells
Type: Scope
Related HTML Tags: td, th
Default Value: #IMPLIED
- scrolling
-
scrollbar or none
Type: Custom (yes | no | auto)
Related HTML Tags: frame, iframe
Default Value: "auto"
- selected
-
determines which option(s) are selected from a list
Type: (selected)
Related HTML Tags: option
Default Value: #IMPLIED
- shape
-
for use with client-side image maps
Type: Shape
Related HTML Tags: a
Default Value: "rect"
controls interpretation of coords
Type: Shape
Related HTML Tags: area
Default Value: "rect"
- size
-
determines size of horizontal rule (deprecated)
Type: Pixels
Related HTML Tags: hr
Default Value: #IMPLIED
base font size for FONT elements (deprecated)
Type: CDATA
Related HTML Tags: basefont
Default Value: #REQUIRED
[+|-]nn (e.g. size="+1", size="4") (deprecated)
Type: CDATA
Related HTML Tags: font
Default Value: #IMPLIED
specific to each type of field
Type: CDATA
Related HTML Tags: input
Default Value: #IMPLIED
rows visible
Type: NUMBER
Related HTML Tags: select
Default Value: #IMPLIED
- span
-
COL attributes affect N columns
Type: NUMBER
Related HTML Tags: col
Default Value: "1"
default number of columns in group
Type: NUMBER
Related HTML Tags: colgroup
Default Value: "1"
- src
-
source of frame content
Type: URI
Related HTML Tags: frame, iframe
Default Value: #IMPLIED
URI of image to embed
Type: URI
Related HTML Tags: img
Default Value: #REQUIRED
for fields with images
Type: URI
Related HTML Tags: input
Default Value: #IMPLIED
URI for an external script
Type: URI
Related HTML Tags: script
Default Value: #IMPLIED
- standby
-
message to show while loading
Type: Text
Related HTML Tags: object
Default Value: #IMPLIED
- start (deprecated)
-
starting sequence number
Type: NUMBER
Related HTML Tags: ol
Default Value: #IMPLIED
- style
-
associated style info
Type: StyleSheet
Related HTML Tags: all elements except base, basefont, head, html, meta, param, script, style, title
Default Value: #IMPLIED
- summary
-
purpose/structure for speech output
Type: Text
Related HTML Tags: table
Default Value: #IMPLIED
- tabindex
-
position in tabbing order
Type: NUMBER
Related HTML Tags: a, area, button, input, object, select, textarea
Default Value: #IMPLIED
- target
-
render in this frame
Type: FrameTarget
Related HTML Tags: a, area, base, form, link
Default Value: #IMPLIED
- text (deprecated)
-
document text color
Type: Color
Related HTML Tags: body
Default Value: #IMPLIED
- title
-
advisory title (usually implemented through tooltips)
Type: Text
Related HTML Tags: all elements except base, basefont, head, html, meta, param, script, title
Default Value: #IMPLIED
- type
-
advisory content type
Type: ContentType
Related HTML Tags: a, link
Default Value: #IMPLIED
content type for data
Type: ContentType
Related HTML Tags: object
Default Value: #IMPLIED
content type for value when valuetype=ref
Type: ContentType
Related HTML Tags: param
Default Value: #IMPLIED
content type of script language
Type: ContentType
Related HTML Tags: script
Default Value: #REQUIRED
content type of style language
Type: ContentType
Related HTML Tags: style
Default Value: #REQUIRED
what kind of widget is needed
Type: InputType
Related HTML Tags: input
Default Value: "TEXT"
list item style (deprecated)
Type: LIStyle
Related HTML Tags: li
Default Value: #IMPLIED
numbering style (deprecated)
Type: OLStyle
Related HTML Tags: ol
Default Value: #IMPLIED
bullet style (deprecated)
Type: ULStyle
Related HTML Tags: ul
Default Value: #IMPLIED
for use as form button
Type: Custom (button | submit | reset)
Related HTML Tags: button
Default Value: "submit"
- usemap
-
use client-side image map
Type: URI
Related HTML Tags: img, input, object
Default Value: #IMPLIED
- valign
-
vertical alignment in cells
Type: Custom (top | middle | bottom | baseline)
Related HTML Tags: col, colgroup, tbody, td, tfoot, th, thead, tr
Default Value: #IMPLIED
- value
-
sent to server when submitted
Type: CDATA
Related HTML Tags: button
Default Value: #IMPLIED
Specify for radio buttons and checkboxes
Type: CDATA
Related HTML Tags: input
Default Value: #IMPLIED
defaults to element content if not specified
Type: CDATA
Related HTML Tags: option
Default Value: #IMPLIED
property value
Type: CDATA
Related HTML Tags: param
Default Value: #IMPLIED
reset sequence number (deprecated)
Type: NUMBER
Related HTML Tags: li
Default Value: #IMPLIED
- valuetype
-
How to interpret value
Type: Custom (DATA | REF | OBJECT)
Related HTML Tags: param
Default Value: DATA
- version (deprecated)
-
version constant
Type: CDATA
Related HTML Tags: html
Default Value: "%HTML.Version;"
- vlink (deprecated)
-
color of visited links
Type: Color
Related HTML Tags: body
Default Value: #IMPLIED
- vspace (deprecated)
-
vertical gutter
Type: Pixels
Related HTML Tags: applet, img, object
Default Value: #IMPLIED
- width
-
initial applet width (deprecated)
Type: Length
Related HTML Tags: applet
Default Value: #REQUIRED
determines the size of the horizontal rule (deprecated)
Type: Length
Related HTML Tags: hr
Default Value: #IMPLIED
frame width
Type: Length
Related HTML Tags: iframe
Default Value: #IMPLIED
override width
Type: Length
Related HTML Tags: img, object
Default Value: #IMPLIED
table width
Type: Length
Related HTML Tags: table
Default Value: #IMPLIED
width for cell (deprecated)
Type: Length
Related HTML Tags: td, th
Default Value: #IMPLIED
column width specification
Type: MultiLength
Related HTML Tags: col
Default Value: #IMPLIED
default width for enclosed COLs
Type: MultiLength
Related HTML Tags: colgroup
Default Value: #IMPLIED
desired width of the pre area
Type: NUMBER (deprecated)
Related HTML Tags: pre
Default Value: #IMPLIED