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Extensible HTML Version 1.0 Frameset

Namespace = http://www.w3.org/1999/xhtml

For further information, see: http://www.w3.org/TR/xhtml1

This DTD module is identified by the PUBLIC and SYSTEM identifiers:

PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
SYSTEM "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd"

Normative Definitions

—cdata: Character Data: A string consisting of one or more numbers or other characters representing data as specified in the entity definitions below. These character include US-ASCII codes, Latin-1 charset, Symbol charset, and Special Characters charsets. Cdata is never parsed but is rendered as presented, thus "<" and "&" are rendered as displayable characters. Line feeds are ignored while each carriage return and tab is replaced with a space. Browsers may ignore leading and trailing whitespace within the attribute value. CDATA attribute values are typically case-sensitive, though this is not the case with all attributes that take CDATA values.
—pcdata: Parsed Character Data: A character string that can be read and interpreted by the user agent or server side application. The same characters allowed for cdata are acceptable. The left angle "<" is interpreted as the start of an element, and the ampersand "&" is interpreted as the start of an entity. Substitute < and & to over-ride this behavior.
—nmtoken: Named tokens: arbitrarily assigned names that represent various members of a defined set of names in a controlled vocabulary. For example, the use of "en" to refer to English as a member of the set of all languages. Frequently these are described in a defined namespace.
—implied: The attribute is optional and need not be defined. The implication refers to the default or inherited value that is applied if not otherwise specified.
—required: The attribute must be defined.
—fixed: The attribute is permanently defined and must not be changed. Its value is shown in the following parentheses.
—empty: No closing tag is required and must be self closed, thus <foo /> instead of the normal <foo></foo>.
—deprecated: This element is presently supported however it is in disfavor and may be dropped from future specifications. There are always suitable alternatives which should be used.
[ENTITY]: This denotes declaration of an XHTML entity. The entity name is immediately followed by its respective attribute list. Comments in curly braces provide additional descriptive information.
[ELEMENT]: This denotes declaration of an XHTML element. The element name is immediately followed by its respective child elements in parentheses followed by its attribute list. Comments in curly braces provide additional descriptive information.
[BLOCK ELEMENT]: This denotes declaration of an XHTML element. The element name is immediately followed by its respective child elements in parentheses followed by its attribute list. Comments in curly braces provide additional descriptive information. Block elements may not be nested inside other block elements but may contain inline elements.
[INLINE ELEMENT]: This denotes declaration of an XHTML element. The element name is immediately followed by its respective child elements in parentheses followed by its attribute list. Comments in curly braces provide additional descriptive information. Inline elements can be inside either block or inline elements, may contain other inline elements, and may not contain block elements unless specifically noted.

DOCUMENT ELEMENTS

Document Type Declaration

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">

Note: The text shown above must appear on the first lines of the document exactly as shown. Its only child is html.

Html Element

[ELEMENT] html (head frameset noframes) [child of dtd]

Common Attributes:

id—implied

international—implied

xmlns { the namespace URI designates the document profile}

uri—fixed ( http://www.w3.org/1999/xhtml )

Note: This element requires a head and body container. Theoretically, there could be a variety of named body elements for different purposes, however no present browsers support this capability.

HEAD ELEMENTS

Head Element

[ELEMENT] head ( title base meta link style script object isindex ) [child of html] { container of document parameters }

Common Attributes:

id—implied

international—implied

profile { profile is used to describe additional elements in addition to those declared in the namespace }

uri—implied

Note: Exactly one title element and a meta element to set the charset are required. The others are optional. There can only be one head container per html container.

Author's note: the profile attribute appears to be a hook included in XHTML to provide a catchall means to extend the function of the markup. There are three instances when a profile seems to be needed. First, acceptable values for the rel and rev attributes provided in the anchor and link elements must be defined for them to be useful. W3C suggests some possible meanings but no real standard exists--yet. I have published an ontology in both html and xml/rdf as as early attempt at defining these. Second, XML namespaces must be declared before they can be used. For example, in the Dublin Core DC:Author meta-element, the meaning of "Author" is defined in the "DC" namespace, so without an explicit reference to that namespace, "Author" has no meaning. Third, properly designed meta description requires the use of ontologies (controlled vocabularies) or structural specifications (complex datatyping such as URI). I have published a possible implementation of such a profile in both html and xml/rdf to demonstrate how it might be implemented. While the use of this profile is open to general use, it should not be considered a standard and is subject to change. The author invites comments and suggestions.

Title Element

[ELEMENT] title (text) [child of head] { container for page title }

Common Attributes:

id—implied

international—implied

Note: The title element is not considered part of the flow of text. It should be displayed, for example, as the page header when printed or in the window titlebar. Exactly one title is required per document.

Base Element

[ELEMENT] base—empty [child of head] { specify network location of this page }

Common Attributes:

id—implied

href { establishes the base of relative uri references if other than the current document }

uri—implied

target { indicates which frame is referred to }

frame target—implied

Note: This is really intended for dealing with framesets, ordinarily it isn't used.

Meta Element

[ELEMENT] meta—empty [child of head] { describe this document }

Common Attributes:

id—implied

international—implied

http-equiv { treat this data as part of the http file header }

pcdata—implied

name { the subject of the triple }

pcdata—implied

content { the predicate of the triple }

pcdata—required

scheme { the nature of the predicate }

pcdata—implied

Note: Meta tags provide a means to pass information about the nature of the document. Some search engines use various declarations to classify searches. However, most meta information is not used in the indexing process. The content of a meta tag is defined by the external application that is evaluating it.

Note: the name attribute used in the Meta Elements is different from the name attribute used in other elements. Semantically, it is the subject of the triple, scheme describes the nature of the predicate, and content is the predicate of the triple.

Link Element

[ELEMENT] link—empty [child of head] { describe the relationship between this document and others }

Common Attributes:

attrs—implied

charset { specify the character set of this link's target }

charset—implied

href { specify the network location of this link's target }

uri—implied

hreflang { specify the language of this link's target }

languagecode—implied

type { specify the mimetype of this link's target }

contenttype—implied

rel { specify the relationship between this document and the link's target }

linktypes—implied

rev { specify the reverse relationship between this document and the link's target }

linktypes—implied

media { specify the medium this link applies to }

mediadesc—implied

target { specify the frame for this link's target to open in }

frametarget—implied

Relationship values can be used in principle:

for document specific toolbars/menus when used with the link element in document head e.g. start, contents, previous, next, index, end, help;
to link to a separate style sheet (rel="stylesheet");
to make a link to a script (rel="script");
by stylesheets to control how collections of html nodes are rendered into printed documents, or
to make a link to a printable version of this document e.g. a PostScript or PDF version (rel="alternate" media="print".

Note: the rev and rel attributes describe the semantic relationship between two resources. For example rel="parent" and rev="child". These relationships should be described in the document specified in the head element profile attribute.

Style Element

[ELEMENT] style (style rules) [child of head] { container for style elements }

Common Attributes:

international—implied

id—implied

type { specify mimetype of style elements }

contenttype—required ex. "text/css"

media { specify which medium this sheet applies to }

mediadesc—implied

title { specify an informative description of this element }

text—implied

xml:space { preserve whitespace }

(="preserve")—fixed ( 'preserve' )

Isindex Element—[deprecated]

[BLOCK ELEMENT] isindex—empty [child of head body]{ single-line text input control }

Common Attributes:

coreattrs—implied

international—implied

prompt { specify prompt text }

text—implied

Note: This element was intended to provide a means to provide user input into a script positioned in the head container that runs before the page loads. It is the only input element that can be placed in the head container. For example, it could prompt for a document name then run a script to load the selected document:

Alternatively, the use of the input element provides greater control options when positioned in a body container.

FRAMESET ELEMENTS

Frameset Element

ELEMENT] frameset (frameset frame noframes) { container for frames }

Common Attributes:

coreattrs

rows { specify the number and height of frame rows }

MultiLengths—implied ex. rows="100, *, 100"

cols { specify the number and width of frame columns }

MultiLengths—implied ex. cols="100, *"

onload { specify function to execute on load }

Script—implied

onunload { specify function to execute on unload }

Script—implied

Note: either the rows or cols attribute of a frameset element can be specified but not both together.

Note: framesets can be nested, where the outer level defines rows and the inner columns or the outer defines columns and the inner rows.

Frame Element

ELEMENT] frame—empty { container for a tiled window within a frameset }

Common Attributes:

coreattrs

longdesc { specify network location of descriptive file }

uri—implied

name { specify name of frame }

frametarget—implied

src { specify network location of frame source }

uri—implied

frameborder { suppress frame border }

(="0") { to suppress }

marginwidth { specify width of left & right margins }

Pixels—implied

marginheight { specify height of top & bottom margin }

Pixels—implied

noresize { locks frame size }

(="noresize")—implied

scrolling

Scroll—implied

NOFRAMES ELEMENTS

Noframes Element

[ELEMENT] noframes (body) { alternate container for non frame-based rendering }

Common Attributes:

attrs—implied

Note: the noframes element is a block element however its contents render only on user agents that either do not support frames or have frame rendering suppressed. For example, It's used to provide a replacement for nav links that ordinarily would be rendered in another frame.

Note: only one noframes element is permitted.

Body Element

[ELEMENT] body (block inline form) [child of html] { container for document content }

Common Attributes:

attrs

onload { specify script to run on page load }

script—implied

onunload { specify script to run on page unload }

script—implied

background { specify network location of background image }

uri—implied

bgcolor { specify this page's background color }

color—implied

text { specify this page's text color }

color—implied

link { specify this page's unvisited link color }

color—implied

vlink { specify this page's visited link color }

color—implied

alink { specify this page's active link color }

color—implied

Block: div p h1 h2 h3 h4 h5 h6 address pre blockquoteins del hr center ul ol dl menu dir table script noscript isindex a> href="#fieldset">fieldset

Inline: span ins del bdo em strong dfn code basefont samp kbd var cite abbr a acronym q sub sup tt i b big small u s strike font object applet script noscript img map iframe br input select textarea button label

Note: inline elements are required to be contained within flow elements. Flow elements are prohibited inside inline elements and other flow elements except where specifically permitted.

Div Element

[BLOCK ELEMENT] div (block inline form) [child of body] { generic language/style container }

Common Attributes:

attrs

align { specifies horizontal alignment of elements within this division }

textalign—implied

Hr Element

[BLOCK ELEMENT] hr—empty [child of body] { horizontal rule }

Common Attribures:

attrs

align { specifies horizontal alignment of the rule }

talign—implied

noshade { specifies whether line will render flat or 3D }

(="noshade")—implied { shade is the default }

size { specifies the height of the line }

pixels—implied

width { specifies the width of the line }

length—implied

Br Element

[INLINE ELEMENT] br—empty [child of body] { forced line break }

Common Attributes:

coreattrs

clear { controls text placement relative to floating objects }

clear—implied

Note: the br element also serves as block element.

Center Element

[BLOCK ELEMENT] center (block inline form) [child of body] { center block level content }

Common Attributes:

attrs

Basefont Element

[INLINE ELEMENT] basefontâ€”empty) [child of body] { specify base font characteristics }

Common Attributes:

id—implied

size { specify text size }

textsize—required

color { specify text color }

color—implied

face { specify text face }

textface—implied

Note: the basefont element works as either a block or an inline element. It establishes a new size, color, and/or face from this point in the document until explicitly changed.

Span Element

[INLINE ELEMENT] span (text inline) { generic language/style container }

Common Attributes:

attrs

TEXT ELEMENTS

P Element

[BLOCK ELEMENT] p (text inline) [child of body] { normal text container }

Common Attributes:

attrs

align { specifies horizontal alignment of cell contents }

textalign—implied

Note: renders in size 3 serif font.

H1 Element

[BLOCK ELEMENT] h1 (text inline) [child of body] { most important heading }

Common Attributes:

attrs

align { specifies horizontal alignment of cell contents }

textalign—implied

Note: renders in size 6 bold serif font.

H2 Element

[BLOCK ELEMENT] h2 (text inline) [child of body] { second most important heading }

Common Attributes:

attrs

align { specifies horizontal alignment of cell contents }

textalign—implied

Note: renders in size 5 bold serif font.

H3 Element

[BLOCK ELEMENT] h3 (text inline) [child of body] { third most important heading }

Common Attributes:

attrs

align { specifies horizontal alignment of cell contents }

textalign—implied

Note: renders in size 4 bold serif font.

H4 Element

[BLOCK ELEMENT] h4 (text inline) [child of body] { fourth most important heading}

Common Attributes:

attrs

align { specifies horizontal alignment of cell contents }

textalign—implied

Note: renders in size 3 bold serif font.

H5 Element

[BLOCK ELEMENT] h5 (text inline) [child of body] { fifth most important heading }

Common Attributes:

attrs

align { specifies horizontal alignment of cell contents }

textalign—implied

Note: renders in size 2 bold serif font.

H6 Element

[BLOCK ELEMENT] h6 (text inline) [child of body] { least important heading }

Common Attributes:

attrs

align { specifies horizontal alignment of cell contents }

textalign—implied

Note: renders in size 1 bold serif font.

Address Element

[BLOCK ELEMENT] address (text inline p input select textarea label button)[child of body] { author's contact info }

Common Attributes:

attrs

Note: renders in italic font.

Pre Element

[BLOCK ELEMENT] pre (text inline) [child of body] { preformatted text }

Common Attributes:

attrs

width { specifies the number of characters per line }

number—implied

xml:space { preserve whitespace }

(="preserve")—fixed

Note: renders in monospace font.

Note: the pre element may not contain the following inline elements: img, object, applet, big, small, sub, sup, font, or basefont

Blockquote Element

[BLOCK ELEMENT] blockquote (block inline form) [child of body] { indents content }

Common Attributes:

attrs

cite { specify network location of this source document - semantic only }

uri—implied

Ins Element

[BLOCK ELEMENT] ins (text block inline form) { indicates inserted text }

Common Attributes:

attrs

cite { specify network location of a document justifying the text insertion - semantic only}

uri—implied

datetime { specify the date of the insertion - semantic only }

datetime—implied

Note: renders with an underline.

Note: ins is allowed in both block and inline content.

Caution: it is inappropriate to include block content within an ins element occurring within inline content.

Del Element

[BLOCK ELEMENT] del (text block inline form) { indicates deleted text }

Common Attributes:

attrs

cite { specify network location of a document justifying the text deletion - semantic only}

uri—implied

datetime { specify the date of the deletion - semantic only }

datetime—implied

Note: renders with a strike through.

Note: del is allowed in block and inline content.

Bdo Element

[INLINE ELEMENT] bdo (text inline) { Bi Directional Override }

Common Attributes:

coreattrs

events

lang { specify the featured language }

languagecode—implied

xml:lang { specify the featured language }

languagecode—implied

dir { specify the direction of text flow }

txtdir—required

Em Element

[INLINE ELEMENT] em (text inline) { emphasis }

Common Attributes:

attrs

Note: renders in italic.

Strong Element

[INLINE ELEMENT] strong (text inline) { strong emphasis }

Common Attributes:

attrs

Note: renders in bold.

Dfn Element

[INLINE ELEMENT] dfn (text inline) { definitional }

Common Attributes:

attrs

Note: renders in italics.

Note: semantically used to indicate a definition.

Code Element

[INLINE ELEMENT] code (text inline) { program code }

Common Attributes:

attrs

Note: renders in monospace font.

Note: semantically used to indicate program code.

Samp Element

[INLINE ELEMENT] samp (text inline) { sample }

Common Attributes:

attrs

Note: renders in monospace font.

Note: semantically used to indicate a sample of something for example, of program output.

Kbd Element

[INLINE ELEMENT] kbd ( text inline) { keyboard }

Common Attributes:

attrs

Note: renders in monospace.

Note: semantically used to indicate user input i.e. something user would type.

Var Element

[INLINE ELEMENT] var (text inline) { variable }

Common Attributes:

attrs

Note: renders in italic font.

Note: semantically used to indicate a variable.

Cite Element

[INLINE ELEMENT] cite (text inline) { source citation }

Common Attributes:

attrs

Note: renders in italic font.

Note: semantically used to indicate a source citation.

Abbr Element

[INLINE ELEMENT] abbr (text inline) { abbreviation }

Common Attributes:

attrs

Note: the title attribute can be used to indicate the meaning of the abbreviation which may render as a tooltip.

Note: semantically used to indicate an abbreviation.

Acronym Element

[INLINE ELEMENT] acronym (text inline) { acronym }

Common Attributes:

attrs

Note: the title attribute can be used to indicate the expanded acronym which may render as a tooltip.

Note: semantically used to indicate an acronym.

Q Element

[INLINE ELEMENT] q (text inline){ inlined quote with external reference }

Common Attributes:

attrs

cite { specify network address of source of the quote - semantic only}

uri—implied

Note: semantically used to indicate a quotation.

Sub Element

[INLINE ELEMENT] sub (text inline) { subscript }

Common Attributes:

attrs

Note: renders as a subscript_{(like this)}

Sup Element

[INLINE ELEMENT] sup (text inline) { superscript }

Common Attributes:

attrs

Note: renders as a superscript^{(like this)}

Tt Element

[INLINE ELEMENT] tt (text inline) { teletype }

Common Attributes:

attrs

Note: render in monospace font.

I Element

[INLINE ELEMENT] i (text inline) { italics }

Common Attributes:

attrs

Note: render in italic font

B Element

[INLINE ELEMENT] b (text inline) { bold }

Common Attributes:

attrs

Note: render in bold font

Big Element

[INLINE ELEMENT] big (text inline) { increase font size }

Common Attributes:

attrs

Note: increase font by one size. Does not increase above 7.

Small Element

[INLINE ELEMENT] small (text inline){ reduce font size }

Common Attributes:

attrs

Note: reduce font by one size. Does not reduce below 1.

U Element

[INLINE ELEMENT] u (text inline) { underline }

Common Attributes:

attrs

Note: render with an underline.

S Element

[INLINE ELEMENT] s (text inline){ strike-through }

Common Attributes:

attrs

Note: render with a strike through.

Strike Element

[INLINE ELEMENT] strike (text inline) { strike-through }

Common Attributes:

attrs

Note: render with a strike-through.

Font Element

[INLINE ELEMENT] font (text inline) { local change to font }

Common Attributes:

coreattrs

i18n

size { specify font size }

textsize—implied

color { specify font color }

color—implied

face { specify font face }

textface—implied

HYPERTEXT ELEMENTS

A Element

[INLINE ELEMENT] a (text inline) { the anchor element }

Common Attributes:

attrs

accessibilty

charset { specify the character set of the anchor's target }
charset—implied

type { specify the mimetype of the anchor's target }

contentype—implied

name { specify the identity of the anchor }

bookmark—implied

href { specify the network location of the anchor's target }

uri—implied { note: can point to a bookmark }

hreflang { specify the language of the anchor's target }

languagecode—implied

rel { specify the relationship between this document and the target }

linktypes—implied

rev { specify the reverse relationship between this document and the target }

linktypes—implied

shape { specify the shape of the hotspot }

shape—implied

coords { specify the coordinates of the hotspot }

coords—implied

target { specify the frame for the anchor's target to open in }

frametarget—implied

Note: anchors ("a") must not be nested.

Note: when the hotspot specifications shape and coords are not specified, the entire anchor content is a link; however, when specified only, that region is a link.

MULTIMEDIA ELEMENTS

Object Element

[INLINE ELEMENT] object (text param block inline) { Embed active object }

Common Attributes:

attrs

declare { object is declared without being instantiated }

(="declare")—implied

classid { specify network location of this object's implementation }

uri—implied

codebase { specify network location of object's relative base }

uri—implied

data { specify netwok location of data needed by this object }

uri—implied

type { specify mimetype of the object's data }

contenttype—implied

codetype { specify mime type of the object's code }

contenttype—implied

archive { specify network location of object's archive }

urilist—implied

standby { specify text to display while the object is loading }

text—implied

height { specify object's height }

length—implied

width { specify object's width }

length—implied

usemap { specify name or network location of image map }

mapname—implied

name { specify the script name of the object }

sname—implied

tabindex { specify the tab order of the object }

number—implied

align { specify horizontal alignment of object }

imgalign—implied

border { specify border width }

pixels—implied

hspace { specify side spacing outside of the border }

pixels—implied

vspace { specify top & bottom spacing outside the border }

pixels—implied

Note: param elements should precede other content with in the element. Parameters can also be expressed as attribute/value pairs on the object element itself when brevity is desired.

Applet Element

[INLINE ELEMENT] applet (text param block inline ){ Embed Java Applet inline }

Common Attributes:

coreattrs

codebase { specify network location of applet's relative base }

uri—implied

archive { specify network locaton of applet's archive file }

uri—implied

code { specify network location of applet's code file }

uri—implied

object { specify network location of the applet }

uri—implied

alt { specify alternate text for browser's that don't support Java }

text—implied

name { specify this applet's script name }

sname—implied

width { specify applet's width }

length—required

height { specify applet's height }

length—required

align { specify applet's horizontal alignment }

imgalign—implied

hspace { specify side spacing outside applet's border }

pixels—implied

vspace { specify top & bottom spacing outside applet's border }

pixels—implied

Note: one of code or object attributes must be present. Place param elements before other content. The use of this element is non preferred as the object element provides greater capability.

Param Element

[ELEMENT] param—empty [child of object applet] { supplies a named property value for this object }

id { document identifier for this parameter }

id—implied

name { the subject of the tuple }

pcdata—required

value { the predicate of the tuple }

pcdata—implied

valuetype { specify the nature of the value }

nmtoken—implied (data or ref or object) see note below

Note:

data - (default) This means that the value submitted by the value attribute will be evaluated and passed as a string
ref - This means that the value submitted by the value attribute will be an unresolved URI
object - This means that the value submitted by the value attribute will refer to an object declaration

Note: In XML it would seem natural to follow RDF and support an abbreviated syntax where the param elements are replaced by attribute value pairs on the object start tag.

SCRIPTING ELEMENTS

Script Element

[BLOCK ELEMENT] script (pcdata) [child of head body] { container for client side scripting }

Common Attributes:

id—implied

charset { specify the character set used in the file indicated in the src attribute }

charset—implied

type { specify the mimetype of the file indicated in the src attribute }

contenttype—required ex. type="text/javascript"

language { specify the programming language and version }

pcdata—implied ex. language="javascript1.5"

src { specify the network location of a file of valid functions and expressions }

uri—implied

defer { specifies that the script does not generate document content }

(="defer")—implied

xml:space { specifies whether whitespace should be preserved }

(="preserve")—fixed ( 'preserve' )

Note: the contents of the script container must be valid functions and expressions consistent with the programming language specified in the required type attribute. The script content within the tags is identical to the content of the external file. The script element is both block and inline.

Noscript Element

[BLOCK ELEMENT] noscript (block inline form) [child of body] { alternate content container for non script-based rendering }

Common Attributes:

attrs—implied

Note: the noscript element should follow any block level script element to provide a suitable substitute for the functionality of the intended scripting if the user agent cannot render the script. The noscript element is both block and inline.

IMAGE ELEMENTS

Img Element

[INLINE ELEMENT] img—empty { Render images }

Common Attributes:

attrs

src { specify the network location of the image to be rendered }

uri—required

alt { specify text to be rendered if image is unavailable }

text—required

name { specify scripting name }

sname—implied

longdesc { specify network location of a text file describing the image }

uri—implied

height { specify the height of the image }

length—implied

width { specify the width of the image }

length—implied

usemap { specify the name or network location of the client side image mapping file }

mapname—implied

ismap { specify the network location of a server side image map }

uri—implied

align { specify the horizontal alignment of the image }

imgalign—implied

border { specify the border thickness }

length—implied

hspace {specify the horizontal space outside the image border }

pixels—implied

vspace { specify the vertical space outside the image border }

pixels—implied

Note: to avoid accessibility problems for people who aren't able to see the image, you should provide a text description using the alt and longdesc attributes. In addition, avoid the use of server-side image maps.

Map Element

[INLINE ELEMENT] map (area block) { Container for client-side image mapping }

Common Attributes:

i18n

events

id { specify the name of the map }

mapname —required

class { specify the CSS class for style characteristics }

class—implied

style { specify local style characteristics }

stylesheet;—implied

title { specify a descriptive title for the map }

text—implied

name { specify the name of the map }

mapname—implied

Note: although a number of elements can be held in this container, normally the only elements within are area elements. The map element is inline only.

Area Element

[ELEMENT] area—empty [child of map]

Common Attributes

attrs

accessibilty

shape { specify the 'hotspot' shape }

shape ex. "rect"

coords { specify the 'hotspot' dimensions }

coords—implied

href { specify the target of the 'hotspot' i.e. the document to open }

uri—implied

nohref { specifes that this 'hotspot' has no target }

(="nohref")—implied

alt { specifies alternative text do display if no image is rendered }

text—required

target { specifies where the specified document will open }

frametarget—implied

Note: these can be placed in the same document or grouped in a separate document although this is not widely supported yet. A hotspot is simply an area on the image map of specified shape and dimension that when clicked loads the document specified in the href atttribute.

FRAME ELEMENTS

Iframe Element

[INLINE ELEMENT] iframe (block inline form){ inline subwindow }

Common Attributes:

coreattrs—implied

longdesc { specify network location of a file describing the content of this element }

uri—implied

name { } specify which frame to open into

frametarget—implied

src { specify the network location of the file to be opened }

uri—implied

frameborder { specifies if border to be suppressed }

(="0")—implied (displayed by default )

marginwidth { specify the space outside of the margin sides }

pixels—implied

marginheight { specify the space outside of the margin top and bottom }

pixels—implied

scrolling { specify whether scroll bars are enabled }

scroll—implied

align { specify horizontal alignment of the window }

imgalign—implied

height { specify the height of the window }

length—implied

width { specify the width of the window}

length—implied

Note: the iframe element allows web documents to be embedded in other web documents essentially creating a single frame frameset.

FORM ELEMENTS

Form Element

[ELEMENT] form (text block inline) [child of body] { form container }

Common Attributes:

attrs

action { specify the network location of the server side script that will process the form }

uri—required

method { specify the HTTP method to use to submit the form to the server side script }

(get or post) ex. ="get"

name { specify the script name for this form }

sname—implied

enctype { specify the MIME media type of this form when method="post" }

contenttype ex. ="application/x-www-form-urlencoded"

onsubmit { specify the client side script function to be executed when "submit" button is clicked }

script—implied

onreset { specify the client side script function to be executed when "reset" button is clicked }

script—implied

accept { specify MIME media types acceptable for user input }

contenttypes—implied

accept-charset { specify character set acceptable in user input }

charsets—implied

target { specify the frame where the results are to be rendered }

frametarget—implied

Note: form elements are block level and must not be nested.

Note: if a form includes a <input type="file"> control, then method="post" and enctype="multipart/form-data" is required.

Input Element

[INLINE ELEMENT] input—empty { input control }

Common Attributes:

attrs

accessibilty

type { specify control type }

inputtype—implied

name { specify script name }

sname—required { for all types except "submit" and "reset" }

value { see notes below }

pcdata—implied

checked { specify that the control should be checked on load}

(="checked")—implied { only relevant for "checkbox" and "radio" controls }

disabled { specify whether the control is disabled on load }

(="disabled")—implied { cannot be used with "hidden" type controls }

readonly { specify whether value of the control can be modified }

(="readonly")—implied { only relevant for "text" type controls }

size { specify the size of the input element }

number—implied { cannot be used with "hidden" type controls }

maxlength { specify maximum number of characters that can be entered in a text box }

number—implied { only relevant with "text" type controls }

src { specify network location of the file. }

uri—implied { only relevant with "image" type controls }

alt { specify alternate text to render if the image is not available }

text—implied { only relevant for "image" type controls }

usemap { specify name or network location of client side map data }

mapname—implied { only relevant with "image" type controls }

onselect { specify script to execute when select is clicked }

script—implied

onchange { specify script to execute when input value is changed }

script—implied

accept { specify acceptable mimetype of user input }

contenttypes—implied { required with "file" type controls }

align { specify horizontal alignment of control }

imgalign—implied { only relevant with "image" type controls }

Note:

Value defines the text on the button for type="button", type="reset", and type="submit"
Value defines the symbolic result of the field passed to a script for type="image"
Value defines the result of the input element when clicked for type="checkboxes" and type="radio". The result is sent to the form's action URL.
Value defines the default value of the element for type="hidden", type="password", and type="text"
Value cannot be used with type="file"
Value is required with type="checkbox" and type="radio"

Select Element

[INLINE ELEMENT] select (optgroup option) { drop down list control }

Common Attributes:

attrs

name { specify script name }

sname—implied

size { specify the number of visible items in list }

number—implied

multiple { specify to allow multiple item selection }

(="multiple")—implied

disabled { specify that the control is disabled on load }

(="disabled")—implied

tabindex { specify tab index order }

number—implied

onfocus { specify the script function to execute when the list gets focus }

script—implied

onblur { specify the script function to execute when the list loses focus }

script—implied

onchange { specify script function to execute when the value of the selection changes }

script—implied

Optgroup Element

[ELEMENT] optgroup (option) { option group }

Common Attributes:

attrs

disabled { specify that the option group is disabled on load }

(="disabled")—implied

label { specify the label for the option group }

text—required

Option Element

[ELEMENT] option (text) [child of optgroup] { selection choice }

Common Attributes:

attrs

selected { specify that the option is preselected }

(="selected")—implied

disabled { specify that the option is to be disabled on load }

(="disabled")—implied

label { specify the label to be displayed }

text—implied

value { specifies the value to be sent to the server side script }

pcdata—implied

Textarea Element

[INLINE ELEMENT] textarea (text) { multi-line text field control }

Common Attributes:

attrs

accessibilty

name { specify the script name of the control }

sname—implied

rows { specify the number of rows to display }

number—required

cols { specify the number of columns to display }

number—required

disabled { specify that the control is disabled on load }

(="disabled")—implied

readonly { specify that the content cannot be modified }

(="readonly")—implied

onselect { specify the script function to execute when selected }

script—implied

onchange { specify the script function to execute when the content changes }

script—implied

Button Element

[INLINE ELEMENT] button (text block inline) { push button control }

Common Attribures:

attrs

accessibilty

name { specify the button's script name }

sname—implied

value { specify the initial value of the button }

pcdata—implied

type { specify the button type }

buttontype—implied

disabled { specify that the button is disabled on load }

(="disabled")—implied

Note: the button element is legal either inside a form or as an inline element. This element differs from the input button in that image and/or text content can be placed inside the tags.

Note: the button element must not contain the following elements: a, form, iframe, input, select, textarea, label, or button.

Fieldset Element

[BLOCK ELEMENT] fieldset (text legend block inline form) { used to group form fields }

Common Attributes:

attrs

Note: only one legend element should occur in the content and if present should only be preceded by whitespace.

Note: the fieldset tag is valid within the following tags: blockquote, body, center, dd, div, fieldset, form, iframe, li, noframes, noscript, object, td, th

Legend Element

[ELEMENT] legend (text inline) [child of fieldset]{ fieldset label }

Common Attributes:

attrs

accesskey { specify keyboard character to get focus }

character—implied

align { specify horizontal alignment of this legend }

lalign—implied

Note: content is flow excluding a, form, form controls, iframe

Label Element

[INLINE ELEMENT] label (text inline) { labels input controls }

Common Attributes:

attrs

for { specify input control to bind this label to }

sname—implied

accesskey { specify keyboard character to get focus }

character—implied

onfocus { specify function to execute when label has focus }

script—implied

onblur { specify function to execute when label loses focus }

script—implied

Note: each label must not contain more than ONE field. Label elements shouldn't be nested.

LIST ELEMENTS

Ul Element

[BLOCK ELEMENT] ul (li) [child of body]{ Unordered list }

Common Attributes:

attrs

type { specify type of this list e.g disc, square, or circle }

ulstyle—implied

compact { specify compact rendering of this list (not widely supported) }

(="compact")—implied

Note: Use the ul element when there is no semantic meaning to the order of list elements.

Ol Element

[BLOCK ELEMENT] ol (li) [child of body]{ Ordered list }

Common Attributes:

attrs

type { specify type of this list e.g. 123 ABC etc }

olstyle—implied

compact { specify compact rendering of this list (not widely supported) }

(="compact")—implied

start { specify starting number of this list }

number—implied

Note: use the ol element when there is semantic meaning to the order of list elements.

Menu Element—[Deprecated]

[BLOCK ELEMENT] menu (li) [child of body] { single column list }

Common Attributes:

attrs

compact { specify compact rendering of this list (not widely supported) }

(="compact")—implied

Note: renders identically as the ul element.

Dir Element—[Deprecated]

[BLOCK ELEMENT] dir (li) [child of body] { multiple column list }

Common Attributes:

attrs

compact { specify compact rendering of this list (not widely supported) }

(="compact")—implied

Note: renders identically as the ul element.

Li Element

[ELEMENT] li (text block inline form)[child of ol ul menu dir ] { List element }

Common Attributes:

attrs

type { specifies type of list element, overrides the specification set in the ol or ul element }

ulstyle or olstyle—implied

value { specify the starting number for this item, overrides the specification set in the ol or ul element }

number—implied

Dl Element

[BLOCK ELEMENT] dl (dt dd) [child of body] { definition list }

Common Attributes:

attrs

compact { specify compact rendering of this list (not widely supported) }

(="compact")—implied

Note: use the dl element where there is a semantic relationship between dt and dd.

Dt Element

[ELEMENT] dt (text inline) [child of dl] { dt contains the term to be defined }

Common Attributes:

attrs

Dd Element

[ELEMENT] dd (text block inline form) [child of dl] { dd contains the term definition }

Common Attributes:

attrs

TABLE ELEMENTS

Table Element

[BLOCK ELEMENT] table (caption col colgroup thead tfoot tbody tr ) [child of body] { container for table elements }

Common Attributes:

attrs

summary { a text description of the table content }

text—implied

width { sets the overall width of the table }

length—implied

border { sets the thickness of the frame around the table }

pixels—implied

frame { specifies which parts of the frame around the table should be rendered }

tframe—implied

rules { specifies which rules to draw between cells }

trules—implied

cellspacing { sets the thickness of the space between rows and colums }

length—implied

cellpadding { sets the thickness of the space between cell border and cell content }

length—implied

align { sets the alignment of the table relative to the page--does not affect cell contents }

talign—implied

bgcolor { sets the background color of the table }

color—implied

Note: The default units are screen pixels.

Caption Element

[ELEMENT] caption (text inline) [child of table] { the table's caption }

Common Attributes:

attrs

align { specify location of the table's caption }

calign—implied

Colgroup Element

[ELEMENT] colgroup ( col ) [child of table] { groups a set of col elements and specifies common characteristics }

Common Attributes:

attrs

span { specify the number of columns included in this group }

number—implied (default is 1)

width { specify the width of columns in the group }

multilength—implied

align { specifies horizontal alignment of cell content within the cells in this column group*}

cellhalign—implied

valign { specifies vertical alignment of cell content within the cells in this column group*}

cellvalign—implied

Note: colgroup allows the grouping of several semantically related columns together.

Note: use multiple colgroup sections when rules are needed between groups of table columns.

* align and valign override positioning set by THEAD TFOOT TBODY TR elements and is overridden by TH and TD settings.

Col Element

[ELEMENT] col—empty [child of table colgroup] { specifies common characteristics of a column }

Common Attributes:

attrs

span { specifies the number of columns included in this definition }

number—implied {default is 1 }

width { specify the width of each column }

multilength—implied

align { specifies horizontal alignment of cell content within the cells in this column*}

cellhalign—implied

valign { specifies vertical alignment of cell content within the cells in this column*}

cellvalign—implied

Note: col elements define the alignment properties for cells in one or more columns. The width attribute specifies the width of the columns, e.g. width=64 width in screen pixels width=0.5* relative width of 0.5

The span attribute causes the attributes of one col element to apply to more than one column.

* align and valign override positioning set by THEAD TFOOT TBODY TR COLGROUP elements and is overridden by TH and TD settings.

Thead Element

[ELEMENT] thead (tr)[child of table]{ container for TR elements containing table headers }

Common Attributes:

attrs

align { specifies horizontal alignment of cell content within cells in this section*}

cellhalign—implied

valign { specifies vertical alignment of cell content within cells in this section*}

cellvalign—implied

Note: use to duplicate headers when breaking table across page boundaries, or for static headers when tbody sections are rendered in scrolling panel.

* align and valign positioning is overridden by the settings configured by COLGROUP COL TR TH TD elements.

Tfoot Element

[ELEMENT] tfoot (tr) [child of table ] { container for TR elements containing table footers }

Common Attributes:

attrs

align { specifies horizontal alignment of cell content within cells in this section*}

cellhalign—implied

valign { specifies vertical alignment of cell content within cells in this section*}

cellvalign—implied

Note: use duplicate footers when breaking table across page boundaries, or for static footers when tbody sections are rendered in scrolling panel.

* align and valign positioning is overridden by the settings configured by COLGROUP COL TR TH TD elements.

Tbody Element

[ELEMENT] tbody (tr) [child of table] { container for the TR elements containing table data }

Common Attributes:

attrs

align { specifies horizontal alignment of cell content within cells in this section*}

cellhalign—implied

valign { specifies vertical alignment of cell content within cells in this section*}

cellvalign—implied

Note: use multiple tbody sections when rules are needed between groups of table rows.

* align and valign positioning is overridden by the settings configured by COLGROUP COL TR TH TD elements.

Tr Element

[ELEMENT] tr (th | td) [child of thead tfoot tbody table] {container for th and td elements--table rows }

Common Attributes:

attrs

align { specifies horizontal alignment of cell content within cells in this row*}

cellhalign—implied

valign { specifies vertical alignment of cell content within cells in this row*}

cellvalign—implied

bgcolor { specifies the background color of this row }

color—implied

* align and valign override positioning set by THEAD TFOOT TBODY elements and is overridden by the COLGROUP, COL, TH and TD settings.

Th Element

[ELEMENT] th (text block inline form) [child of tr]{ container for column header }

Common Attributes:

attrs

abbr { provide an abbreviated form of cell contents }

text—implied

axis { see note below }

pcdata—implied

headers { see note below }

pcdata—implied

scope { see note below }

scope—implied

rowspan { specify the number of rows to be merged }

number {default is 1 }

colspan { specify the number of columns to be merged }

number {default is 1 }

align { specifies horizontal alignment of cell content within the cell*}

cellhalign

valign { specifies vertical alignment of cell contents with the cell* }

cellvalign

nowrap { specify whether cell content is allowed to wrap }

(="nowrap")—implied { default is wrap }

bgcolor { specify the background color of this cell }

color—implied

width { specify the width of this cell }

length—implied

height { specify the height of this cell }

length—implied

Note: The headers attribute specifies a space-separated list of header cells that provide header information for the current cell. It references the id attributes of the headers. This is used most often to make tables more accessible, for example the header information might be spoken before each cell in a non-visual user agent.

Note: The axis attribute is used to place the cell into conceptual categories that can be considered to form axes in an n-dimensional space. This allows the user agent to then display the categorized cells in various ways.

Note: The scope attribute specifies the table cells that the current cell provides header information for. A value of col indicates that the cell is a header for the the rest of the column below it. A value of colgroup indicates that the cell is a header for its current column group. A value of row indicates that that the cell contains header information for the rest of the row it is in. A value of rowgroup indicates that the cell is a header for its row group. This attribute might be used in place of the header attribute and is useful for rendering assistance by nonvisual browsers. This attribute was added very late to the HTML 4 specification so support for this attribute is minimal.

* align and valign override positioning set by TR THEAD TFOOT TBODY COL COLGROUP elements.

Td Element

[ELEMENT] td (text block inline form) [child of tr]{ container for table data i.e. a table cell }

Common Attributes:

attrs

abbr { provide an abbreviated form of cell contents }

text—implied

axis { see note below }

pcdata—implied

headers { see note below }

pcdata—implied

scope { see note below }

scope—implied

rowspan { specifies the number of rows to be merged together }

number {default is 1 }

colspan {specifies the number of columns to be merged together }

number {default is 1 }

align { specifies horizontal alignment of cell contents within the cell* }

cellhalign

valign { specifies vertical alignment of cell contents within the cell* }

cellvalign

nowrap { specifies whether cell content is allowed to wrap }

(="nowrap")—implied { default is wrap }

bgcolor { specifies the background color of this cell }

color—implied

width { specifies the width of this cell }

length—implied

height { specifies the height of this cell }

length—implied

* align and valign override positioning set by TR THEAD TFOOT TBODY COL COLGROUP elements.

ENTITY DECLARATIONS

Internal Names

[ENTITY] Bookmark—pcdata { A unique document wide identifier.}
Creates an item in a list of nmtokens used as the targets for anchors. Attribute values of type ID and NAME must begin with a letter in the range A-Z or a-z and may be followed by letters (A-Za-z), digits (0-9), hyphens ("-"), underscores ("_"), colons (":"), and periods ("."). These values are case-sensitive.

[ENTITY] ButtonType—nmtoken { the type of button }

submit {default}

causes the current values of all form elements to be submitted to the server script

button

causes no default behavior, use various event triggers (i.e. onclick) to call client scripts

reset

causes a reset of all form elements to initial values

[ENTITY] CAlign—nmtoken { table caption alignment }

top {default}

top center placement

left

top left placement

right

top right placement

bottom

bottom center placement

[ENTITY] CellHAlign—nmtoken { horizontal alignment of table cell contents }

left (default)

align along left side of cell

center

align along centerline of cell

right

align along right side of cell

justify

align along both sides of cell

char

align on a specified character

If align="char" then two additional attributes are available:

char { specify alignment character }

character—implied (default: ex. char=".")

charoff { specify offset distance in pixels or percent }

length—implied ex. charoff="25" or charoff="50%"

Note: the char option is not widely supported and should not be relied on.

[ENTITY] CellVAlign—nmtoken { vertical alignment attributes for cell contents }

middle (default)

center between top and bottom of cell borders

top

position at top of cell

bottom

position at bottom of cell

baseline

align with adjacent text

[ENTITY] Class—pcdata { a class derived from an internal style element or external style sheet }

[ENTITY] Clear—nmtoken { controls text placement relative to floating objects }

none (default) Note: limited browser support for this attribute

no float

left

float to left

right

float to right

all

float left and right

[ENTITY] Color—nmtoken { specify entity color using sRGB: #RRGGBB as Hex values or by ColorName }

[ENTITY] Coords—pcdata { comma separated list of coordinate pairs or triplets }

left x, top y, right x, bottom y

specify TL and BR corner of rectangle

center x, center y, radius

specify center coordinate and radius of circle

x1, y1, x2, y2, ... xn, yn, x1, y1

specify a list of coordinate pairs describing a polygon, last one same as the first to close

[ENTITY] FrameTarget—nmtoken { specifies which which frame to render in }

_self (default)

render in this frame/document

_top

opens the child frame into a full browser window (essentially breaking the frame out of the frameset).

_parent

render in the frameset document containing the frame

_blank

opens a new window and renders in that window.

framename

render in the named frame

Note: framename is the name of any child frame defined in a frameset. FrameNames can also be created by the name attribute of iframe. Reserved framenames begin with "_{_}", named ones begin with a letter.

Note: the values _parent, _self, and _top are only meaningful in the context of a framed (frameset) document and do not open a new window.

[ENTITY] Id—pcdata { A unique document wide identifier }
Id is used to connect to the entity by either style or scripting. Attribute values of type ID must begin with a letter in the range A-Z or a-z and may be followed by letters (A-Za-z), digits (0-9), hyphens ("-"), underscores ("_"), colons (":"), and periods ("."). These values are case-sensitive.

[ENTITY] InputType—nmtoken { specify a control for user input }

text (default)

Single line text input

password

password box input

checkbox

single option selection (one of one)

radio

multiple option selection (one of several)

submit

form submission button

reset

form reset button

file

file uploader

hidden

passes parameter without rendering

image

image button

button

general purpose button

[ENTITY] ImgAlign—nmtoken { image alignment within document }

top

align top of image with top of adjacent object

middle

align center of image with bottom of adjacent object

bottom (default)

align bottom of image with bottom of adjacent object

left

align left side of image at the left, then, float text around it

right

align right side of image at right, then float text around it

[ENTITY] LAlign—nmtoken { legend align }

left (default)

render top left

center

render top center

right

render top right

Note: while the specification lists top, bottom, left, and right as legal values, the browsers only respond to left, center, and right.

[ENTITY] Length—pcdata { pixels or nn% for percentage length }
Length attribute values may be either an integer--interpreted as a number of pixels--or a percentage of the horizontal or vertical space. The value 50% means half the available space while 50 means 50 pixels.

|[ENTITY] MapName—nmtoken { links client side image map to image elements }

name of local map

uri of remote map file {not widely supported}

[ENTITY] MediaDesc—nmtoken { single or comma-separated list of user agent types:

screen

web browser

tty

TDD machine for hearing impared

tv

WebTV

projection

video projection devices

handheld

cell phones, PDA, etc.

print

printers

braille

brailers

aural

audible screen readers

all

all user agents

[ENTITY] MultiLength—pcdata { Length or relative }
MultiLength attribute values may be an integer in pixels, a percentage of the horizontal or vertical space, or a relative length expressed as i* where i is an integer. In allotting space, a browser first allots pixel and percentage lengths, then divides the remaining space among all elements with a relative length. An element with a length of 3* will be allotted three times the space of an element with length 1*. The value * is equivalent to 1* and is often used to mean "fill the remaining space."

A MultiLengths value is a comma-separated list of MultiLength values.

[ENTITY] Number—pcdata { one or more digits 0-9 }

[ENTITY] OLStyle—nmtoken { ordered (numbered) list numbering style }

"1" (default)

Arabic numbers (1, 2, 3, ...)

"a"

lower case alphabet (a, b, c, ...)

"A"

upper case alphabet (A, B, C, ...)

"i"

lower case Roman numerals (i, ii, iii, ...)

"I"

upper case Roman numerals (I, II, III, ...)

The style is applied to the sequence number, which, by default, is reset to "1" for the first list item in an ordered list.

[ENTITY] Pixels—pcdata { integer representing the length in pixels }

[ENTITY] Script—pcdata { script expression or function call in the form: javascript:myfunction() }

[ENTITY] Scope—nmtoken { Scope is simpler than headers attribute for common tables }

row

scope includes all cells in this row

col

scope include all cells in this column

rowgroup

scope includes all cells in this row group <tbody>

colgroup

scope includes all cells in this column group <colgroup>

|[ENTITY] Scroll—nmtoken { specify scrolling behavior }

auto

display scrollbars if the source document is larger than the window, suppresses otherwise

yes

display scrollbars

no

suppress scrollbars

[ENTITY] Shape—nmtoken { hotspot definition for image maps }

rect

any rectangular area

circle

any circular area

poly

any odd shaped area

default

any area not defined as rect, circle, or poly

[ENTITY] Sname—pcdata { A unique document wide identifier.}
Creates an item in a list of nmtokens used to connect to elements for client and server scripting. Attribute values of type NAME must begin with a letter in the range A-Z or a-z and may be followed by letters (A-Za-z), digits (0-9), hyphens ("-"), underscores ("_"), colons (":"), and periods ("."). These values are case-sensitive.

[ENTITY] StyleSheet—pcdata { style sheet data from either internal or external styling }

[ENTITY] TAlign—nmtoken { horizontal placement of element relative to document }

left

align at left side of document or context

center

align in the center of document or context

right

align at right side of document or context

[ENTITY] Text—cdata { text is a sequence of characters representing renderable content. }
Legal characters include either the tab, carriage return, line feed, or any of the characters of Unicode

[ENTITY] TextAlign—nmtoken {for p, div, h1-h6 elements }

left

Align text left

center

Align text in center

right

Align text right

justify

Align text on both left and right

Note: the default is align="left" for ltr headings, align="right" for rtl headings

[ENTITY] TextSize—nmtoken { specify the absolute or relative height of text }

1 | 2 | 3 | 4 | 5 | 6 | 7

absolute size

+1 | +2 | +3 | +4 | +5 | +6 | +7

relative increase

-1 | -2 | -3 | -4 | -5 | -6 | -7

relative decrease

Note: relative values will not increase the size above seven or reduce size below one.

[ENTITY] TFrame—nmtoken { specifies which sided of the table frame should be rendered }

box (default)

top, bottom, left, and right

border

top, bottom, left, and right

above

top only

below

bottom only

hsides

top and bottom only

lhs

left side only

rhs

right side only

vsides

left and right sides only

void

no sides

[ENTITY] TRules—nmtoken { defines which rules to draw between cells in a table }

none

render no rules

rows

render horizontal rules between rows

cols

render vertical rules between columns

groups

render horizontal and vertical rules between thead, tbody, tfoot, and colgroup sections

all

render horizontal and vertical rules between rows and columns

Note: default conditions - if rules is not specified and border is absent or border="0" assume "none" otherwise "all"

[ENTITY] TxtDir—nmtoken { used for p, headings, bdo}

ltr

Left to Right

rtl

Right to Left

|[ENTITY] TextFace—nmtoken { specify the font face }

serif (default)

Sample

sans serif

Sample

monospace

Sample

cursive

Sample

symbol

Sample

any named face

[ENTITY] ULStyle—nmtoken { unordered list bullet styles }

disc {default}

filled in circle

square

filled in square

circle

open circle

External Names and References

[ENTITY] Charset—nmtoken { a character encoding per RFC-2045, for a complete list of recognized types see IANA Character Sets e.g. "US-ASCII" or "UTF-8"}

[ENTITY] Charsets—nmtoken { a space separated list of charset }

[ENTITY] ContentType—nmtoken { media type per RFC-2046, for a complete list of recognized types see IANA Media Types }

[ENTITY] ContentTypes—nmtoken { comma-separated list of ContentType }

[ENTITY] Datetime—pcdata { date and time information. ISO-8601 }
Date format: YYYY-MM-DDThh:mm:ssTZD

[ENTITY] LanguageCode—nmtoken { a language code per RFC-3066 e.g. "en" or "en-US" }

[ENTITY] LinkTypes—nmtoken { space-separated list of link types }
Options include alternate | stylesheet | start | next | prev | contents | index | glossary | copyright | chapter | section | subsection | appendix | help | bookmark

[ENTITY] KeyChar—nmtoken { a single textual character corresponding to the keys on the keyboard }
On MS Windows machines the user presses the [ALT] key and then this key, on Apple/McIntosh machines, the [CMD] key and this key.

[ENTITY] URI—pcdata { a Uniform Resource Identifier, see RFC-2396 }

[ENTITY] UriList—pcdata { a space separated list of URI }

Generic Attributes

[ENTITY] attrs

coreattrs

{ core attributes common to most elements }

international

{common attributes needed for international character sets}

events

{ These attributes trigger event handlers }

[ENTITY] coreattrs { core attributes common to most elements }

id

Id—implied { a document-wide unique id }

class

Class—implied { a space separated list of classes }

style

StyleSheet—implied { associated style info }

title

Text—implied { advisory title/amplification typically rendered in a tooltip box that pops up when the mouse is over the element. }

Internationalization Attributes

[ENTITY] international {common attributes needed for international character sets}

lang

LanguageCode—implied { backwards compatible language code }

xml:lang

LanguageCode—implied { language code as per XML 1.0 specification }

dir

TxtDir—implied { direction for weak/neutral text }

Attributes for Common UI Events

[ENTITY] events { These attributes trigger event handlers }

onclick { a mouse button was clicked }

Script—implied

ondblclick { a mouse button was double clicked }

Script—implied

onmousedown { a mouse button was pressed down }

Script—implied

onmouseup { a mouse button was released }

Script—implied

onmouseover { a mouse was moved onto the element }

Script—implied

onmousemove { a mouse was moved over the element }

Script;—implied

onmouseout { a mouse was moved away from the element }

Script—implied

onkeypress { a key was pressed and released }

Script—implied

onkeydown { a key was pressed down }

Script—implied

onkeyup { a key was released }

Script—implied

Accessibility Attributes

[ENTITY] Accessibility

accesskey

KeyChar—implied { accessibility key character. Best Practices suggests that when this property is defined, a suitable explanation should be included in the title property.}

tabindex

Number—implied { tab ordering }

onfocus

Script—implied { the element got the focus }

onblur

Script—implied { the element lost the focus }

Character Mnemonic Entities

[ENTITY] HTMLlat1 PUBLIC "-//W3C//ENTITIES Latin 1 for XHTML//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml-lat1.ent"

[ENTITY] HTMLsymbol PUBLIC "-//W3C//ENTITIES Symbols for XHTML//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml-symbol.ent"

[ENTITY] HTMLspecial PUBLIC "-//W3C//ENTITIES Special for XHTML//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml-special.ent"

[ENTITY] HTMLspecial PUBLIC "-//W3C//ENTITIES Standard Colors for XHTML//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml-standard-colors.ent"