First edition 2000-05-15.
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester.
Printed in Switzerland
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.
International Standards are drafted in accordance with the rules given in ISO/IEC Directives, Part 3.
In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75% of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
International Standard ISO/IEC 15445 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC34, Document description languages. JTC1/SC34 has worked on this project in close cooperation with the World Wide Web Consortium. This International Standard makes normative reference to the W3C Recommendation for HTML 4.01.
Annexes A and B form a normative part of this International Standard.
This corrected version of the International Standard includes normative technical changes, altering the requirements and recommendations for the use of the W3C Recommendation for HTML 4.01, and extends the support for accessibility to the World Wide Web. The changes result in part from practical experience with the language defined by this International Standard and in part from the World Wide Web Consortium's adoption of HTML 4.01 as the reference specification for the HTML 4 language. Details of the changes are provided in the Supplement to the corrected version of ISO/IEC 15445:2000.
The HyperText Markup Language (HTML) is an application of the International Standard ISO 8879 -- Standard Generalized Markup Language (SGML). It provides a simple way of structuring hypertext documents and of placing references in one document which point to another. This International Standard is a refinement of the World Wide Web Consortium's (W3C's) Recommendation for HTML 4.0: it provides further rules to condition and refine the use of the W3C Recommendation in a way which emphasizes the use of stable and mature features, and represents accepted SGML practice. Documents which conform to this International Standard also conform to the strict DTD provided by the W3C Recommendation for HTML 4.01.
This International Standard makes a clear and important distinction between conforming systems and validating systems. A conforming system operates correctly when handling documents which conform to this International Standard, but is not required to operate correctly when the documents do not conform. A validating system is more powerful: it detects all SGML and HTML errors in a document. Frequently browsers are conforming systems whereas authoring tools check for validity.
This International Standard does not define error handling procedures.
NOTE: International Standard ISO/IEC 15445 assumes that the reader is familiar with International Standard ISO 8879 -- Standard Generalized Markup Language (SGML). Readers who are not experts in SGML may wish to consult the User's Guide to ISO/IEC 15445. The User's Guide provides more accessible descriptions of the SGML techniques that are used, for example, in the document preparation process.
The scope of this International Standard is a conforming application of ISO 8879, SGML. This International Standard describes the way in which the HTML language specified by the following clauses in the W3C Recommendation for HTML 4.01 shall be used, and does so by identifying all the differences between the HTML language specified by the W3C Recommendation for HTML 4.01 and the HTML language defined by this International Standard:
<BIG>
[W3C 15.2.1],
<SMALL>
[W3C 15.2.1], <STRIKE>
[W3C 15.2.1], <S>
[W3C 15.2.1] and <U>
[W3C 15.2.1] element [type]s. The scope excludes any material in the W3C Recommendation for HTML 4.01 not listed in this clause.
This International Standard distinguishes between conforming documents, validating systems, conforming systems and character set conformance.
A document which conforms to this International Standard shall
<HTML>
[W3C 7.3] document element. The
document type declaration may be surrounded by
white space consisting of RS, RE, SPACE, TAB and HTML
comments. The document instance may also be followed by such
white space.
An HTML system is a validating HTML system if
Validating systems conforming to this International Standard shall display the following identification text prominently and in the national language of the documentation:
The HTML validating system identification text is:
An HTML validating system conforming to International Standard ISO/IEC 15445—HyperText Markup Language, and International Standard ISO 8879—Standard Generalized Markup Language (SGML).
NOTE: The validating system identification text is copyrighted by the ISO/IEC, but may be used without further permission or further reference to the ISO/IEC.
A conforming HTML system is an HTML system which is able to process all documents conforming to this standard.
Conforming systems shall display the following identification text prominently and in the national language of the documentation:
The HTML conforming system identification text is:
An HTML system conforming to International Standard ISO/IEC 15445—HyperText Markup Language.
The documentation shall not claim or imply that the system may be used to validate HTML documents.
The SGML declaration provided with this International Standard calls for the use of ISO/IEC 10646 Universal Multiple-Octet Coded Character Set (UCS). ISO/IEC 10646 specifies a large number of facilities from which different selections may be made to suit individual applications. As a result it is only practicable to envisage limited conformance to ISO/IEC 10646 as defined in this subclause.
Under limited conformance, the following is required:
The UTF-1 transformation format of ISO/IEC 10646, registered by IANA as ISO-10646-UTF-1, has been removed from ISO/IEC 10646 and should not be used.
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based in this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards.
This International Standard refers normatively to:
NOTE: The W3C Recommendation contains futher normative references and defines their application.
NOTE: ISO/IEC 10744 HyTime provides the techniques required to allow HTML to be used as a base architecture for other SGML applications.
For the purposes of this International Standard, the definitions given in ISO 8879:1986 and the following definitions apply:
HREF attribute
value following the `#' character.
The following symbols and abbreviated terms are used in this International Standard:
This International Standard has been designed to satisfy the following requirements:
NOTE: The techniques for using HTML as a base architecture are provided by ISO/IEC 10744 HyTime.
The set of element types provided by this International Standard is a subset of the set of element [type]s defined by the W3C Recommendation for HTML 4.01. The set of attributes provided for each element type included in this International Standard is a subset of the corresponding set defined by the W3C Recommendation for HTML 4.01. The set of element types and the sets of attributes are defined by the DTD provided with this International Standard.
Where refinements are defined for element types and attributes, the semantics are a subset of the semantics defined by the W3C Recommendation for HTML 4.01 in the sense that the set of documents conforming to this International Standard is a subset of those conforming to the W3C Recommendation for HTML 4.01.
NOTE: For clarity, and as required by ISO 8879, this International Standard makes a distinction between an individual element with a given generic identifier and the class of all such elements. The class is called an element type, the instance is called an element and the generic identifier is called an element type name.
When an HTML text is transmitted as UCS-2 or UCS-4, this International Standard recommends:
The DTD provided by this International Standard has the following formal public identifiers:
"ISO/IEC 15445:2000//DTD HyperText Markup Language//EN" "ISO/IEC 15445:2000//DTD HTML//EN"
The DTD is typically invoked by one of the following declarations:
<!DOCTYPE HTML PUBLIC "ISO/IEC 15445:2000//DTD HyperText Markup Language//EN"> <!DOCTYPE HTML PUBLIC "ISO/IEC 15445:2000//DTD HTML//EN">
The document type declaration shall not include a document type declaration subset .
NOTE: The DTD provides an optional mechanism to facilitate the production of conforming documents. The optional mechanism, which is not a part of this International Standard, allows an SGML parser to verify the correct nesting of sections and requires the use of an alternative document type declaration which is described in the User's Guide to ISO/IEC 15445. The Guide also provides descriptions of the SGML techniques used in the documentation preparation process.
In order to use the HTML document type definition as a base architecture for other SGML applications, the following architectural support declaration should be used:
<?IS10744
arch name="html"
public-id="ISO/IEC 15445:2000//DTD HyperText Markup Language//EN"
dtd-system-id="ftp://ftp.cs.tcd.ie/isohtml/15445.dtd"
renamer-att="HTMLnames"
doc-elem-form="HTML"
>The comments in the DTD which use the expressions "shall" or "shall not" are normative requirements of this International Standard. Comments which use the expression "should" or "should not" are recommendations of this International Standard. Comments which use the verbs "recommend" or "deprecate" are recommendations and deprecations of this International Standard.
The formal SGML definitions are part of the text of this International Standard and are protected by copyrights held by the IETF, the W3C (MIT, Inria, Keio) and the ISO/IEC. Permission to copy is granted provided the following copyright notice is included with all copies:
Permission to copy in any form is granted for use with validating and conforming systems and applications as defined in ISO/IEC 15445:2000, provided this copyright notice is included with all copies.
This International Standard requires a complete separation of style and content.
A <STYLE>
[W3C 14.2.3] element may be used in the head of a document as a
container for a style sheet. The style sheet language is not defined
by this International Standard.
Wherever this International Standard describes a possible presentation, eg. as a button, the styling information is intended to provide assistance to the reader in understanding the semantics of the element or attribute. It is not intended as a normative style requirement.
All comments in HTML document instances shall appear in comment declarations. There shall be exactly one comment per comment declaration.
(normative )
<!SGML "ISO 8879:1986 (WWW)"
-- ISO/IEC 15445 Hypertext Markup Language (ISO-HTML)
SGML Declaration
Copyright (C) 2000 IETF, W3C (MIT, Inria, Keio), ISO/IEC
All Rights Reserved
Permission to copy in any form is granted for use with
validating and conforming systems and applications as defined
in ISO/IEC 15445, provided this copyright notice is included
with all copies.
--
CHARSET
-- First 17 planes of ISO 10646. --
BASESET "ISO Registration Number 177//CHARSET
ISO/IEC 10646-1:1993 UCS-4 with
implementation level 3//ESC 2/5 2/15 4/6"
DESCSET 0 9 UNUSED
9 2 9
11 2 UNUSED
13 1 13
14 18 UNUSED
32 95 32
127 1 UNUSED
128 32 UNUSED
160 55136 160
55296 2048 UNUSED
57344 1056768 57344
--
ISO/IEC 10646 does not define all positions. For example, it reserves
positions with hexadecimal values 0000D800 - 0000DFFF, used in the
UTF-16 encoding of UCS-4, as well as the last two code values in each
plane of UCS-4, ie. all values of the hexadecimal form xxxxFFFE and
xxxxFFFF. Undefined code values and the corresponding numeric
character references should not be included in an HTML document, and
they shall be ignored if encountered when processing an HTML document.
--
CAPACITY SGMLREF
TOTALCAP 150000
GRPCAP 150000
ENTCAP 150000
SCOPE DOCUMENT
SYNTAX
SHUNCHAR CONTROLS 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 127
BASESET "ISO 646IRV:1991//CHARSET
International Reference Version
(IRV)//ESC 2/8 4/2"
DESCSET 0 128 0
FUNCTION
RE 13
RS 10
SPACE 32
TAB SEPCHAR 9 -- Deprecated --
NAMING LCNMSTRT ""
UCNMSTRT ""
LCNMCHAR ".-_:"
UCNMCHAR ".-_:"
NAMECASE GENERAL YES
ENTITY NO
DELIM GENERAL SGMLREF
HCRO "&#x" -- 38 is Ampersand --
SHORTREF SGMLREF
NAMES SGMLREF
QUANTITY SGMLREF
ATTCNT 60
ATTSPLEN 65536 -- These are the largest values --
LITLEN 65536 -- permitted in the declaration. --
NAMELEN 65536 -- Avoid fixed limits in actual --
PILEN 65536 -- implementations of user agents. --
TAGLVL 100
TAGLEN 65536
GRPGTCNT 150
GRPCNT 64
FEATURES
MINIMIZE
DATATAG NO
OMITTAG YES
RANK NO
SHORTTAG YES
LINK
SIMPLE NO
IMPLICIT NO
EXPLICIT NO
OTHER
CONCUR NO
SUBDOC NO
FORMAL YES
APPINFO NONE
>
(normative )
The DTD defined in this clause references the entity set specified
by the W3C to define the characters of ISO 8859-1 8-bit
single-byte coded graphic character sets — Latin alphabet
No. 1. The reference uses a formal public identifier ``-//W3C//ENTITIES Full Latin 1//EN//HTML'' which
contains the public text description ``Full
Latin 1''. The public text descriptions ``Latin alphabet No. 1'', ``Latin 1'' and ``Latin1'' are permitted alternatives which
describe the same entity set.
The DTD defined in this clause references the entity set specified
by the W3C to define mathematical, Greek and symbolic characters.
The reference uses a formal public identifier ``-//W3C//ENTITIES Symbolic//EN//HTML'' which
contains the public text description ``Symbolic''. The public text description
``Symbols'' is a permitted alternative
which describes the same entity set.
NOTE: The User's Guide to this International Standard describes a way in which system administrators may allow simultaneous use of these alternatives.
<!-- 15445.dtd
ISO/IEC 15445:2000 Hypertext Markup Language (HTML)
Document Type Definition.
Copyright (C) 2000-2003, IETF, W3C (MIT, Inria, Keio), ISO/IEC.
All Rights Reserved.
Permission to copy in any form is granted for use with
validating and conforming systems and applications as defined
in ISO/IEC 15445:2000, provided this copyright notice is included
with all copies.
The DTD is typically invoked by one of the following declarations:
<!DOCTYPE HTML PUBLIC "ISO/IEC 15445:2000//DTD HyperText Markup Language//EN">
<!DOCTYPE HTML PUBLIC "ISO/IEC 15445:2000//DTD HTML//EN">
In order to use the HTML document type definition as a base architecture for
other SGML applications, one of the following architectural support
declarations should be used:
<?IS10744
arch name="html"
public-id="ISO/IEC 15445:2000//DTD HyperText Markup Language//EN"
dtd-system-id="ftp://ftp.cs.tcd.ie/isohtml/15445.dtd"
renamer-att="HTMLnames"
doc-elem-form="HTML"
>
<!ENTITY % HtmlDtd PUBLIC "ISO/IEC 15445:2000//DTD HTML//EN">
<?IS10744 ArcBase HTML>
<!NOTATION HTML PUBLIC
"-//ISO-HTML User's Guide//NOTATION HTML Architecture//EN">
<!ATTLIST #NOTATION HTML
ArcDTD CDATA #FIXED "%HtmlDtd"
ArcDocF NAME #FIXED "HTML"
ArcNamrA NAME #IMPLIED
>
-->
<!-- Part 1 - Entity set -->
<!-- The Preparation parameter entity shall be set to IGNORE for HTML,
and to INCLUDE for a document to be submitted to the preparation
process -->
<!ENTITY % Preparation "IGNORE" >
<!-- This definition generates the inverse entity
NoPreparation which is internal to the DTD -->
<![ %Preparation; [
<!ENTITY % NoPreparation "IGNORE" -- Inverse of Preparation = INCLUDE -->
]]>
<!ENTITY % NoPreparation "INCLUDE" -- Inverse of Preparation = IGNORE -->
<!-- End of definition -->
<!-- Tokens defined by other standards -->
<!ENTITY % Content-Type "CDATA" -- MIME content type, RFC1521 -->
<!ENTITY % HTTP-Method "(get | post)" -- as per HTTP/1.1 RFC2068 -->
<!ENTITY % URI "CDATA" -- Universal Resource Identifier, RFC1630 -->
<!-- Element tokens -->
<!ENTITY % special "A | BDO | BR | IMG | OBJECT |
MAP | Q | SPAN" >
<!-- Logical character styles -->
<!ENTITY % logical.styles "ABBR | ACRONYM | CITE | CODE | DFN | EM |
KBD | SAMP | STRONG | VAR" >
<!-- Physical character styles -->
<!ENTITY % physical.styles "B | I | SUB | SUP | TT" >
<!-- Model groups -->
<!-- Block-like elements eg. paragraphs and lists -->
<!ENTITY % block "BLOCKQUOTE | DIV | DL | FIELDSET | FORM |
HR | OL | P | PRE | TABLE | UL" >
<!-- Form fields - input elements that should appear only within forms -->
<!ENTITY % form.fields "BUTTON | INPUT | LABEL | SELECT | TEXTAREA" >
<!-- Character level elements and text strings -->
<!ENTITY % text "#PCDATA | %physical.styles; | %logical.styles; | %special;
| %form.fields;" >
<!-- Elements that may appear in a section or table -->
<!ENTITY % section.content "(%block; | %text; | ADDRESS)+" >
<!ENTITY % table.content "(%block; | %text;)*" >
<!-- Generic attributes -->
<!ENTITY % core
"CLASS CDATA #IMPLIED -- Comma separated list of class values --
--The name space of the ID attribute is shared with the name space of
the NAME attribute. Both ID and NAME attributes may be provided for
the <A> and <MAP> elements. When both ID and NAME values are provided
for an element, the values shall be identical. It is an error for an
ID or NAME value to be associated with more than one element in a
document.
It is recommended that authors of documents specify both the ID
attribute and the NAME attribute for the <A> and <MAP> elements.
--
ID ID #IMPLIED -- Document-wide unique id --
TITLE CDATA #IMPLIED -- Advisory title or amplification --" >
<!-- Internationalization attributes -->
<!ENTITY % i18n
"DIR (ltr|rtl) #IMPLIED -- Direction for weak/neutral text --
LANG NAME #IMPLIED -- RFC1766 language value --" >
<!-- Presentation styles -->
<!ENTITY % shape "(circle | default | poly | rect)" >
<!ENTITY % InputType "(checkbox | file | hidden | password |
radio | reset | submit | text)" >
<!-- SHORTREF mapping for the tab character -->
<!-- Use of the tab character is deprecated. However, to facilitate
the preparation of conforming documents by authors who use it,
the tab character is tolerated and is mapped into a single space. -->
<!ENTITY nontab " " >
<!SHORTREF tabmap " " nontab >
<!USEMAP tabmap HTML >
<!-- Specify character entity sets defined by W3C -->
<!ENTITY % HTMLlat1 PUBLIC "-//W3C//ENTITIES Full Latin 1//EN//HTML" >
<!ENTITY % HTMLsymbol PUBLIC "-//W3C//ENTITIES Symbolic//EN//HTML" >
<!ENTITY % HTMLspecial PUBLIC "-//W3C//ENTITIES Special//EN//HTML" >
<!-- Reference character entities -->
%HTMLlat1;%HTMLsymbol;%HTMLspecial;
<!-- Part 2 - Document structure -->
<!-- Further normative requirements on the elements defined in this part
of the DTD are provided in Part 3.-->
<!-- ELEMENTS MIN CONTENT (EXCEPTIONS) -->
<!ELEMENT HTML - - (HEAD, BODY) >
<!ELEMENT HEAD - O (TITLE) +(LINK | META | STYLE) >
<!ELEMENT TITLE - - (#PCDATA) -(LINK | META | STYLE) >
<!ELEMENT LINK - O EMPTY >
<!ELEMENT META - O EMPTY >
<!ELEMENT STYLE - - CDATA >
<!-- The following marked section is informative only -->
<![ %Preparation; [
<!ELEMENT Pre-HTML - - (HEAD, BODY) >
<!ATTLIST Pre-HTML %i18n; -- Internationalization DIR and LANG -->
<!ELEMENT BODY - O ((%block;)*,(H1,DIV1)* ) +(DEL|INS) >
<!ELEMENT H1 - - (%text;)+ >
<!ELEMENT DIV1 O O ((%block;)*, (H2,DIV2)* ) >
<!ELEMENT H2 - - (%text;)+ >
<!ELEMENT DIV2 O O ((%block;)*, (H3,DIV3)* ) >
<!ELEMENT H3 - - (%text;)+ >
<!ELEMENT DIV3 O O ((%block;)*, (H4,DIV4)* ) >
<!ELEMENT H4 - - (%text;)+ >
<!ELEMENT DIV4 O O ((%block;)*, (H5,DIV5)* ) >
<!ELEMENT H5 - - (%text;)+ >
<!ELEMENT DIV5 O O ((%block;)*, (H6,DIV6)* ) >
<!ELEMENT H6 - - (%text;)+ >
<!ELEMENT DIV6 O O ((%block;)*) >
]]>
<!-- The following marked section is normative -->
<![ %NoPreparation; [
<!ELEMENT BODY - O (%block;|H1|H2|H3|H4|H5|H6)+ +(DEL|INS) >
<!ELEMENT (H1|H2|H3|H4|H5|H6) - - (%text;)+ >
]]>
<!ELEMENT DIV - - %section.content; >
<!ELEMENT ADDRESS - - (%text;)+ -(IMG|OBJECT|MAP) >
<!ELEMENT P - O (%text;)+ >
<!ELEMENT (OL|UL) - - (LI)+ >
<!ELEMENT LI - O (%text; | %block;)+ >
<!ELEMENT DL - - (DT|DD)+ >
<!ELEMENT DT - O (%text;)+ >
<!ELEMENT DD - O %section.content; -(ADDRESS) >
<!ELEMENT PRE - - (%text;)+ -(IMG|MAP|OBJECT|SUB|SUP) >
<!ELEMENT BLOCKQUOTE - - (%block;)+ >
<!ELEMENT Q - - (%text;)+ >
<!ELEMENT FORM - - (%block;)+ -(FORM) >
<!-- #PCDATA required to absorb leading white space -->
<!ELEMENT FIELDSET - - (#PCDATA,LEGEND,(%block; | %text; | ADDRESS)+)
-(FIELDSET) >
<!ELEMENT INPUT - O EMPTY >
<!ELEMENT BUTTON - - (%text;)+ -(A|FIELDSET|FORM|%form.fields;) >
<!ELEMENT LABEL - - (%text;)+ -(LABEL) >
<!ELEMENT LEGEND - - (#PCDATA) >
<!ELEMENT SELECT - - (OPTGROUP|OPTION)+ >
<!ELEMENT OPTGROUP - - (OPTION)+ >
<!ELEMENT OPTION - O (#PCDATA) >
<!ELEMENT TEXTAREA - - (#PCDATA) >
<!ELEMENT HR - O EMPTY >
<!ELEMENT TABLE - - (CAPTION?, (COL*|COLGROUP*),
THEAD?, TFOOT?, TBODY+) >
<!ELEMENT CAPTION - - (%text;)+ >
<!ELEMENT (THEAD,TFOOT,TBODY) - O (TR)+ >
<!ELEMENT COL - O EMPTY >
<!ELEMENT COLGROUP - O (COL)* >
<!ELEMENT TR - O (TH|TD)+ >
<!ELEMENT (TH|TD) - O %table.content; >
<!ELEMENT (%logical.styles;|%physical.styles;)
- - (%text;)+ >
<!ELEMENT A - - (%text;)* -(A) >
<!ELEMENT IMG - O EMPTY >
<!ELEMENT OBJECT - - (PARAM | %section.content;)* >
<!ELEMENT PARAM - O EMPTY >
<!ELEMENT BR - O EMPTY >
<!-- Authors should use the block-level content of the <MAP> element when
creating accessible documents. Each region should be specified using
an <A> element to define its associated link and shape. User agents
should render the block-level content of a <MAP> element. -->
<!ELEMENT MAP - - ((%block;)|AREA)+ >
<!ELEMENT AREA - O EMPTY >
<!ELEMENT SPAN - - (%text;)+ >
<!ELEMENT (DEL|INS) - - (%text;)+ >
<!ELEMENT BDO - - (%text;)+ >
<!-- Part 3 - Attribute definition lists -->
<!-- ELEMENTS
NAME VALUE DEFAULT -->
<!ATTLIST A
--Case shall not be taken into account when determining a match
between an ID value and a NAME value, between an ID value and
an HREF value or between a NAME value and an HREF value.
Comparisons should be made with the values folded to upper case.
The NAME attribute value specification shall be processed as if the
declared value were NAME.
It is recommended that authors of HTML documents specify both ID
and NAME attributes, and use values restricted to the 40 characters
"ABCDEFGHIJKLMNOPQRSTUVWXYZ.-_:0123456789". When both attributes
are specified, they shall have identical values.
COORDS shall not be specified if SHAPE has the value `default'.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
ACCESSKEY CDATA #IMPLIED -- Accessibility key character --
CHARSET CDATA #IMPLIED -- Character encoding as per RFC2045 --
COORDS CDATA #IMPLIED -- Comma separated list of values --
HREF %URI; #IMPLIED -- Source anchor is URI of target --
HREFLANG NAME #IMPLIED -- Language code of resource --
NAME CDATA #IMPLIED -- Target anchor --
REL CDATA #IMPLIED -- Forward link types --
REV CDATA #IMPLIED -- Reverse link types --
SHAPE %shape; rect -- Control interpretation of coords --
TABINDEX NUMBER #IMPLIED -- Position in tabbing order --
TYPE CDATA #IMPLIED -- Advisory content type -->
<!ATTLIST ADDRESS
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST AREA
--One of HREF or NOHREF shall be specified.
COORDS shall not be specified if SHAPE has the value `default'.
Authors are very strongly recommended to provide meaningful ALT
attributes to support interoperability with speech-based or text-only
agents. The language and direction of the text provided by the ALT
attribute are defined by the containing elements.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
ACCESSKEY CDATA #IMPLIED -- Accessibility key character --
ALT CDATA #REQUIRED -- Description for text-only UAs --
COORDS CDATA #IMPLIED -- Comma separated list of values --
HREF %URI; #IMPLIED -- This region acts as hypertext link --
NOHREF (nohref) #IMPLIED -- This region has no action --
SHAPE %shape; rect -- Control interpretation of coords --
TABINDEX NUMBER #IMPLIED -- Position in tabbing order -->
<!ATTLIST BDO
%core; -- Element CLASS, ID and TITLE --
DIR (ltr|rtl) #REQUIRED -- Direction of writing --
LANG NAME #IMPLIED -- RFC1766 language value -->
<!ATTLIST BLOCKQUOTE
--The contents of the <BLOCKQUOTE> element shall not be surrounded with
quotation marks. These may be added by the user agent through the use
of a style sheet.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
CITE %URI; #IMPLIED -- URI for source document or message -->
<!ATTLIST BODY
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST BR
%core; -- Element CLASS, ID and TITLE -->
<!ATTLIST BUTTON
--The <BUTTON> element shall not contain the <A>, <BUTTON>, <FIELDSET>,
<FORM>, <INPUT>, <LABEL>, <SELECT> or <TEXTAREA> elements.
If the <BUTTON> element contains an <IMG> element, the <IMG> shall not
have an ISMAP or USEMAP attribute.
The TYPE attribute shall be provided, and when the TYPE is
specified as `submit', the NAME and VALUE attributes shall be provided.
The NAME attribute is required if the TYPE attribute has the value
`submit'.
If the TYPE attribute has value `reset', and the <BUTTON> is contained
in a <FIELDSET>, the reset action is limited to the contents of the
<FIELDSET>.
The VALUE attribute is required if the TYPE attribute has the value
`submit' and specifies the value to be returned if the button
is selected.
The <BUTTON> element should be used only in the content of a <FORM>
element.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
ACCESSKEY CDATA #IMPLIED -- Accessibility key character --
DISABLED (disabled) #IMPLIED -- Control unavailable in this context --
NAME CDATA #IMPLIED -- Required for all except submit, reset --
TABINDEX NUMBER #IMPLIED -- Position in tabbing order --
TYPE (submit|reset) submit -- For use as form submit/reset button --
VALUE CDATA #IMPLIED -- Passed to server when submitted -->
<!ATTLIST CAPTION
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST COL
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
SPAN NUMBER 1 -- Number of cols spanned -->
<!ATTLIST COLGROUP
--The SPAN attribute should only be used if the <COLGROUP> element
has no content.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
SPAN NUMBER 1 -- Number of cols spanned by group -->
<!ATTLIST DD
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST DEL
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
CITE %URI; #IMPLIED -- Information on reason for change --
DATETIME CDATA #IMPLIED -- When changed, subset of ISO/IEC 8601 -->
<!ATTLIST DIV
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST DL
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST DT
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST FIELDSET
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST FORM
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
ACCEPT CDATA #IMPLIED -- List of MIME types for file upload --
ACCEPT-CHARSET CDATA #IMPLIED -- List of supported char sets --
ACTION %URI; #REQUIRED -- Server-side form handler --
ENCTYPE %Content-Type; "application/x-www-form-urlencoded"
METHOD %HTTP-Method; get -- See HTTP specification -->
<!ATTLIST HEAD
%i18n; -- Internationalization DIR and LANG --
PROFILE %URI; #IMPLIED -- Named dictionary of meta info -->
<!ATTLIST HR
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST HTML
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST (H1 | H2 | H3 | H4 | H5 | H6)
--The <H1> element shall not be followed by an <H3>, <H4>, <H5> or
<H6> element without an intervening <H2> element.
The <H2> element shall not be followed by an <H4>, <H5> or <H6>
element without an intervening <H3> element.
The <H3> element shall not be followed by an <H5> or <H6> element
without an intervening <H4> element.
The <H4> element shall not be followed by an <H6> element without an
intervening <H5> element.
An <H2> element shall be preceded by an <H1> element.
An <H3> element shall be preceded by an <H2> element.
An <H4> element shall be preceded by an <H3> element.
An <H5> element shall be preceded by an <H4> element.
An <H6> element shall be preceded by an <H5> element.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST IMG
--If the <IMG> element is contained in a <BUTTON> element, the <IMG>
shall not have an ISMAP or USEMAP attribute.
If the ISMAP attribute is present in an <IMG> element, that <IMG>
element shall be contained in an <A> element with an HREF attribute
present.
At most one of the attributes ISMAP and USEMAP may be provided.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
ALT CDATA #REQUIRED -- Text for text-only user agent --
ISMAP (ismap) #IMPLIED -- Use server image map --
LONGDESC %URI; #IMPLIED -- Extended description for text UA --
SRC %URI; #REQUIRED -- URI of image to embed --
USEMAP %URI; #IMPLIED -- Use client-side image map -->
<!ATTLIST INPUT
--If the attribute TYPE has the value `checkbox', values shall be
provided for the NAME and VALUE attributes.
If the attribute TYPE has the value `file', a value shall be
provided for the NAME attribute; HTML interpreting agents should
request user confirmation of any default file names that might
be suggested, and fields specifying files shall not be hidden.
If the attribute TYPE has the value `hidden', values shall be
provided for the NAME and VALUE attributes.
If the attribute TYPE has the value `password', a value shall be
provided for the NAME attribute.
If the attribute TYPE has the value `radio', values shall be
provided for the the NAME and VALUE attributes. At all times,
one and only one of the radio buttons shall be checked.
Initially, if none of the <INPUT> elements in a set of radio
buttons specifies CHECKED, then the user agent shall mark the
first radio button of the set as checked.
If the attribute TYPE has the value `submit', and a value is
specified for the VALUE attribute, then a value shall be provided
for the NAME attribute.
If the attribute TYPE has the value `text', values shall be
provided for the NAME and VALUE attributes.
The MAXLENGTH and TABINDEX values shall be considered as integers
with any leading zeroes ignored.
The <INPUT> element should be used only in the content of a <FORM>
element.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
ACCEPT CDATA #IMPLIED -- List of MIME types for file upload --
ACCESSKEY CDATA #IMPLIED -- Accessibility key character --
CHECKED (checked) #IMPLIED -- For radio buttons, checkboxes --
DISABLED (disabled) #IMPLIED -- Control unavailable in this context --
MAXLENGTH NUMBER #IMPLIED -- Max chars for text fields --
NAME CDATA #IMPLIED -- Required for all except submit, reset --
READONLY (READONLY) #IMPLIED -- For text --
SIZE CDATA #IMPLIED -- Specific to each type of field --
TABINDEX NUMBER #IMPLIED -- Position in tabbing order --
TYPE %InputType; text -- Widget --
VALUE CDATA #IMPLIED -- Required for radio, checkboxes -->
<!ATTLIST INS
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
CITE %URI; #IMPLIED -- Information on reason for change --
DATETIME CDATA #IMPLIED -- When changed, subset of ISO/IEC 8601 -->
<!ATTLIST LABEL
--The <LABEL> element shall refer to a form field in the content of the
<FORM> element which contains the <LABEL>.
The <LABEL> element should be used only in the content of a <FORM>
element.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
ACCESSKEY CDATA #IMPLIED -- Accessibility key character --
FOR IDREF #IMPLIED -- Points to associated field -->
<!ATTLIST LEGEND
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
ACCESSKEY CDATA #IMPLIED -- Accessibility key character -->
<!ATTLIST LI
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST LINK
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
CHARSET CDATA #IMPLIED -- Character encoding as per RFC2045 --
HREF %URI; #IMPLIED -- URI for link resource --
HREFLANG NAME #IMPLIED -- Language code of resource --
MEDIA CDATA #IMPLIED -- Destination media of referenced doc --
REL CDATA #IMPLIED -- Forward link types --
REV CDATA #IMPLIED -- Reverse link types --
TYPE CDATA #IMPLIED -- Advisory Internet content type -->
<!ATTLIST MAP
--The value of the NAME attribute is case sensitive, and the attribute
value specification shall be processed as if the declared value were
NAME.
It is recommended that authors of HTML documents specify both ID
and NAME attributes, and use values restricted to the 40 characters
"ABCDEFGHIJKLMNOPQRSTUVWXYZ.-_:0123456789". When both attributes
are specified, they shall have identical values.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
NAME CDATA #REQUIRED -- Referenced by USEMAP in <IMG> -->
<!ATTLIST META
%i18n; -- Internationalization DIR and LANG --
CONTENT CDATA #REQUIRED -- Associated information --
HTTP-EQUIV NAME #IMPLIED -- HTTP response header name --
NAME NAME #IMPLIED -- Meta-information name --
SCHEME CDATA #IMPLIED -- Nature of content -->
<!ATTLIST OBJECT
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
CLASSID %URI; #IMPLIED -- Identifies implementation --
CODEBASE %URI; #IMPLIED -- Needed by some systems --
CODETYPE CDATA #IMPLIED -- Internet content type for code --
DATA %URI; #IMPLIED -- Reference to objects data --
DECLARE (declare) #IMPLIED -- Flag: declare but dont instantiate --
NAME CDATA #IMPLIED -- Submit as part of form --
STANDBY CDATA #IMPLIED -- Show this msg while loading --
TABINDEX NUMBER #IMPLIED -- Position in tabbing order --
TYPE CDATA #IMPLIED -- Internet content type for data --
USEMAP %URI; #IMPLIED -- Reference to image map -->
<!ATTLIST OL
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST OPTGROUP
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
DISABLED (disabled) #IMPLIED -- Control unavailable in this context --
LABEL CDATA #REQUIRED -- For use in hierarchical menus -->
<!ATTLIST OPTION
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
DISABLED (disabled) #IMPLIED -- Control unavailable in this context --
LABEL CDATA #IMPLIED -- For use in hierarchical menus --
SELECTED (selected) #IMPLIED -- Pre-selected option --
VALUE CDATA #IMPLIED -- Defaults to content -->
<!ATTLIST P
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST PARAM
ID ID #IMPLIED -- Document-wide unique id --
NAME CDATA #REQUIRED -- Name of parameter --
TYPE CDATA #IMPLIED -- Internet Media Type --
VALUE CDATA #IMPLIED -- Value of parameter --
VALUETYPE (data|ref|object)
data -- Interpret value as -->
<!ATTLIST PRE
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST Q
--The textual contents of the <Q> element shall not be surrounded with
quotation marks. These may be added by the user agent through the
use of a style sheet.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
CITE %URI; #IMPLIED -- URI for source document or message -->
<!ATTLIST SELECT
--The <SELECT> element should be used only in the content of a <FORM>
element.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
DISABLED (disabled) #IMPLIED -- Control unavailable in this context --
MULTIPLE (multiple) #IMPLIED -- Default is single selection --
NAME CDATA #REQUIRED -- Field name --
SIZE NUMBER #IMPLIED -- Rows visible --
TABINDEX NUMBER #IMPLIED -- Position in tabbing order -->
<!ATTLIST SPAN
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST STYLE
--The <STYLE> element contains style sheet information which shall be
passed to the user agent's style manager. Any style sheet language
may be used. It is a user agent error to render the style sheet
information as if it were part of a document's text.
--
%i18n; -- Internationalization DIR and LANG --
MEDIA CDATA #IMPLIED -- Designed for use with these media --
TITLE CDATA #IMPLIED -- Advisory title --
TYPE CDATA #REQUIRED -- Internet content type for style lang. -->
<!ATTLIST TABLE
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
SUMMARY CDATA #REQUIRED -- Purpose/structure for speech output -->
<!ATTLIST TBODY
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST TD
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
ABBR CDATA #IMPLIED -- Abbreviation for header cell --
AXIS CDATA #IMPLIED -- Names groups of related headers --
COLSPAN NUMBER 1 -- Number of columns spanned by cell --
HEADERS IDREFS #IMPLIED -- List of ID's for header cells --
ROWSPAN NUMBER 1 -- Number of rows spanned by cell --
SCOPE (col|colgroup|row|rowgroup)
#IMPLIED -- Scope covered by header cells -->
<!ATTLIST TEXTAREA
--The <TEXTAREA> element should be used only in the content of a <FORM>
element.
--
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
ACCESSKEY CDATA #IMPLIED -- Accessibility key character --
COLS NUMBER #REQUIRED -- Number required in av char widths --
DISABLED (disabled) #IMPLIED -- Control unavailable in this context --
NAME CDATA #REQUIRED -- Name of form field --
READONLY (readonly) #IMPLIED -- For text --
ROWS NUMBER #REQUIRED -- Number of rows required --
TABINDEX NUMBER #IMPLIED -- Position in tabbing order -->
<!ATTLIST TFOOT
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST TH
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG --
ABBR CDATA #IMPLIED -- Abbreviation for header cell --
AXIS CDATA #IMPLIED -- Names groups of related headers --
COLSPAN NUMBER 1 -- Number of columns spanned by cell --
HEADERS IDREFS #IMPLIED -- List of ID's for header cells --
ROWSPAN NUMBER 1 -- Number of rows spanned by cell --
SCOPE (col|colgroup|row|rowgroup)
#IMPLIED -- Scope covered by header cells -->
<!ATTLIST THEAD
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST TITLE
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST TR
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST UL
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!-- Attribute group definition lists -->
<!ATTLIST (%physical.styles;)
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!ATTLIST (%logical.styles;)
%core; -- Element CLASS, ID and TITLE --
%i18n; -- Internationalization DIR and LANG -->
<!-- End of file -->
[1] "Hypertext Markup Language - 2.0". T. Berners-Lee, D. Connolly. IETF RFC1866, November 1995. Category: Standards Track. http://www.ietf.org/rfc/rfc1866.txt
[2] "Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types", N. Freed, N. Borenstein. IETF RFC2046, November 1996. Category: Standards Track. Obsoletes: 1521, 1522, 1590. http://www.ietf.org/rfc/rfc2046.txt
ICS 35.240.30
Price based on 20 pages.
PURL: http://purl.org/NET/ISO+IEC.15445/15445.html
Last change was on
2024-06-19Z15:56:35 UTC