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16 Obsolete features

16 Obsolete features

16.1 Obsolete but conforming features

Features listed in this section will trigger warnings in conformance checkers.

Authors should not specify a border attribute on an img element. If the attribute is present, its value must be the string "0". CSS should be used instead.

Authors should not specify a charset attribute on a script element. If the attribute is present, its value must be an ASCII case-insensitive match for "utf-8". (This has no effect in a document that conforms to the requirements elsewhere in this standard of being encoded as UTF-8.)

Authors should not specify a language attribute on a script element. If the attribute is present, its value must be an ASCII case-insensitive match for the string "JavaScript" and either the type attribute must be omitted or its value must be an ASCII case-insensitive match for the string "text/javascript". The attribute should be entirely omitted instead (with the value "JavaScript", it has no effect), or replaced with use of the type attribute.

Authors should not specify a value for the type attribute on script elements that is the empty string or a JavaScript MIME type essence match. Instead, they should omit the attribute, which has the same effect.

Authors should not specify a type attribute on a style element. If the attribute is present, its value must be an ASCII case-insensitive match for "text/css".

Authors should not specify the name attribute on a elements. If the attribute is present, its value must not be the empty string and must neither be equal to the value of any of the IDs in the element's tree other than the element's own ID, if any, nor be equal to the value of any of the other name attributes on a elements in the element's tree. If this attribute is present and the element has an ID, then the attribute's value must be equal to the element's ID. In earlier versions of the language, this attribute was intended as a way to specify possible targets for fragments in URLs. The id attribute should be used instead.

Authors should not, but may despite requirements to the contrary elsewhere in this specification, specify the maxlength and size attributes on input elements whose type attributes are in the Number state. One valid reason for using these attributes regardless is to help legacy user agents that do not support input elements with type="number" to still render the text control with a useful width.

16.1.1 Warnings for obsolete but conforming features

To ease the transition from HTML4 Transitional documents to the language defined in this specification, and to discourage certain features that are only allowed in very few circumstances, conformance checkers must warn the user when the following features are used in a document. These are generally old obsolete features that have no effect, and are allowed only to distinguish between likely mistakes (regular conformance errors) and mere vestigial markup or unusual and discouraged practices (these warnings).

The following features must be categorized as described above:

The presence of a border attribute on an img element if its value is the string "0".
The presence of a charset attribute on a script element if its value is an ASCII case-insensitive match for "utf-8".
The presence of a language attribute on a script element if its value is an ASCII case-insensitive match for the string "JavaScript" and if there is no type attribute or there is and its value is an ASCII case-insensitive match for the string "text/javascript".
The presence of a type attribute on a script element if its value is a JavaScript MIME type essence match.
The presence of a type attribute on a style element if its value is an ASCII case-insensitive match for "text/css".
The presence of a name attribute on an a element, if its value is not the empty string.
The presence of a maxlength attribute on an input element whose type attribute is in the Number state.
The presence of a size attribute on an input element whose type attribute is in the Number state.

Conformance checkers must distinguish between pages that have no conformance errors and have none of these obsolete features, and pages that have no conformance errors but do have some of these obsolete features.

For example, a validator could report some pages as "Valid HTML" and others as "Valid HTML with warnings".

16.2 Non-conforming features

Elements in the following list are entirely obsolete, and must not be used by authors:

applet

Use embed or object instead.

acronym

Use abbr instead.

bgsound

Use audio instead.

dir

Use ul instead.

frame

frameset

noframes

Either use iframe and CSS instead, or use server-side includes to generate complete pages with the various invariant parts merged in.

isindex

Use an explicit form and text control combination instead.

keygen

For enterprise device management use cases, use native on-device management capabilities.

For certificate enrollment use cases, use the Web Cryptography API to generate a keypair for the certificate, and then export the certificate and key to allow the user to install them manually. [WEBCRYPTO]

listing

Use pre and code instead.

menuitem

To implement a custom context menu, use script to handle the contextmenu event.

nextid

Use GUIDs instead.

noembed

Use object instead of embed when fallback is necessary.

param

Use the data attribute of the object element to set the URL of the external resource.

plaintext

Use the "text/plain" MIME type instead.

rb

rtc

Providing the ruby base directly inside the ruby element or using nested ruby elements is sufficient.

strike

Use del instead if the element is marking an edit, otherwise use s instead.

xmp

Use pre and code instead, and escape "<" and "&" characters as "<" and "&" respectively.

basefont

big

blink

center

font

marquee

multicol

nobr

spacer

tt

Use appropriate elements or CSS instead.

Where the tt element would have been used for marking up keyboard input, consider the kbd element; for variables, consider the var element; for computer code, consider the code element; and for computer output, consider the samp element.

Similarly, if the big element is being used to denote a heading, consider using the h1 element; if it is being used for marking up important passages, consider the strong element; and if it is being used for highlighting text for reference purposes, consider the mark element.

See also the text-level semantics usage summary for more suggestions with examples.

The following attributes are obsolete (though the elements are still part of the language), and must not be used by authors:

charset on a elements
charset on link elements: Use an HTTP `Content-Type` header on the linked resource instead.
charset on script elements (except as noted in the previous section): Omit the attribute. Both documents and scripts are required to use UTF-8, so it is redundant to specify it on the script element since it inherits from the document.
coords on a elements
shape on a elements: Use area instead of a for image maps.
methods on a elements
methods on link elements: Use the HTTP OPTIONS feature instead.
name on a elements (except as noted in the previous section)
name on embed elements
name on img elements
name on option elements: Use the id attribute instead.
rev on a elements
rev on link elements: Use the rel attribute instead, with an opposite term. (For example, instead of rev="made", use rel="author".)
urn on a elements
urn on link elements: Specify the preferred persistent identifier using the href attribute instead.
accept on form elements: Use the accept attribute directly on the input elements instead.
hreflang on area elements
type on area elements: These attributes do not do anything useful, and for historical reasons there are no corresponding IDL attributes on area elements. Omit them altogether.
nohref on area elements: Omitting the href attribute is sufficient; the nohref attribute is unnecessary. Omit it altogether.
profile on head elements: Unnecessary. Omit it altogether.
manifest on html elements: Use service workers instead. [SW]
version on html elements: Unnecessary. Omit it altogether.
ismap on input elements: Unnecessary. Omit it altogether. All input elements with a type attribute in the Image Button state are processed as server-side image maps.
usemap on input elements
usemap on object elements: Use the img element for image maps.
longdesc on iframe elements
longdesc on img elements: Use a regular a element to link to the description, or (in the case of images) use an image map to provide a link from the image to the image's description.
lowsrc on img elements: Use a progressive JPEG image (given in the src attribute), instead of using two separate images.
target on link elements: Unnecessary. Omit it altogether.
type on menu elements: To implement a custom context menu, use script to handle the contextmenu event. For toolbar menus, omit the attribute.
label on menu elements
contextmenu on all elements
onshow on all elements: To implement a custom context menu, use script to handle the contextmenu event.
scheme on meta elements: Use only one scheme per field, or make the scheme declaration part of the value.
archive on object elements
classid on object elements
code on object elements
codebase on object elements
codetype on object elements: Use the data and type attributes to invoke plugins.
declare on object elements: Repeat the object element completely each time the resource is to be reused.
standby on object elements: Optimize the linked resource so that it loads quickly or, at least, incrementally.
typemustmatch on object elements: Avoid using object elements with untrusted resources.
language on script elements (except as noted in the previous section): Omit the attribute for JavaScript; for data blocks, use the type attribute instead.
event on script elements
for on script elements: Use DOM events mechanisms to register event listeners. [DOM]
type on style elements (except as noted in the previous section): Omit the attribute for CSS; for data blocks, use script as the container instead of style.
datapagesize on table elements: Unnecessary. Omit it altogether.
summary on table elements: Use one of the techniques for describing tables given in the table section instead.
abbr on td elements: Use text that begins in an unambiguous and terse manner, and include any more elaborate text after that. The title attribute can also be useful in including more detailed text, so that the cell's contents can be made terse. If it's a heading, use th (which has an abbr attribute).
axis on td and th elements: Use the scope attribute on the relevant th.
scope on td elements: Use th elements for heading cells.
datasrc on a, button, div, frame, iframe, img, input, label, legend, marquee, object, option, select, span, table, and textarea elements
datafld on a, button, div, fieldset, frame, iframe, img, input, label, legend, marquee, object, select, span, and textarea elements
dataformatas on button, div, input, label, legend, marquee, object, option, select, span, and table elements: Use script and a mechanism such as XMLHttpRequest to populate the page dynamically. [XHR]
dropzone on all elements: Use script to handle the dragenter and dragover events instead.
alink on body elements
bgcolor on body elements
bottommargin on body elements
leftmargin on body elements
link on body elements
marginheight on body elements
marginwidth on body elements
rightmargin on body elements
text on body elements
topmargin on body elements
vlink on body elements
clear on br elements
align on caption elements
align on col elements
char on col elements
charoff on col elements
valign on col elements
width on col elements
align on div elements
compact on dl elements
align on embed elements
hspace on embed elements
vspace on embed elements
align on hr elements
color on hr elements
noshade on hr elements
size on hr elements
width on hr elements
align on h1—h6 elements
align on iframe elements
allowtransparency on iframe elements
frameborder on iframe elements
framespacing on iframe elements
hspace on iframe elements
marginheight on iframe elements
marginwidth on iframe elements
scrolling on iframe elements
vspace on iframe elements
align on input elements
border on input elements
hspace on input elements
vspace on input elements
align on img elements
border on img elements (except as noted in the previous section)
hspace on img elements
vspace on img elements
align on legend elements
type on li elements
compact on menu elements
align on object elements
border on object elements
hspace on object elements
vspace on object elements
compact on ol elements
align on p elements
width on pre elements
align on table elements
bgcolor on table elements
border on table elements
bordercolor on table elements
cellpadding on table elements
cellspacing on table elements
frame on table elements
height on table elements
rules on table elements
width on table elements
align on tbody, thead, and tfoot elements
char on tbody, thead, and tfoot elements
charoff on tbody, thead, and tfoot elements
height on thead, tbody, and tfoot elements
valign on tbody, thead, and tfoot elements
align on td and th elements
bgcolor on td and th elements
char on td and th elements
charoff on td and th elements
height on td and th elements
nowrap on td and th elements
valign on td and th elements
width on td and th elements
align on tr elements
bgcolor on tr elements
char on tr elements
charoff on tr elements
height on tr elements
valign on tr elements
compact on ul elements
type on ul elements
background on body, table, thead, tbody, tfoot, tr, td, and th elements: Use CSS instead.

16.3 Requirements for implementations

16.3.1 The `marquee` element

The marquee element is a presentational element that animates content. CSS transitions and animations are a more appropriate mechanism. [CSSANIMATIONS] [CSSTRANSITIONS]

The marquee element must implement the HTMLMarqueeElement interface.

[Exposed=Window]
interface HTMLMarqueeElement : HTMLElement {
  [HTMLConstructor] constructor();

  [CEReactions, Reflect] attribute DOMString behavior;
  [CEReactions, Reflect] attribute DOMString bgColor;
  [CEReactions, Reflect] attribute DOMString direction;
  [CEReactions, Reflect] attribute DOMString height;
  [CEReactions, Reflect] attribute unsigned long hspace;
  [CEReactions] attribute long loop;
  [CEReactions, Reflect, ReflectDefault=6] attribute unsigned long scrollAmount;
  [CEReactions, Reflect, ReflectDefault=85] attribute unsigned long scrollDelay;
  [CEReactions, Reflect] attribute boolean trueSpeed;
  [CEReactions, Reflect] attribute unsigned long vspace;
  [CEReactions, Reflect] attribute DOMString width;

  undefined start();
  undefined stop();
};

A marquee element can be turned on or turned off. When it is created, it is turned on.

When the start() method is called, the marquee element must be turned on.

When the stop() method is called, the marquee element must be turned off.

The behavior content attribute on marquee elements is an enumerated attribute with the following keywords and states (all non-conforming):

Keyword	State
`scroll`	scroll
`slide`	slide
`alternate`	alternate

The attribute's missing value default and invalid value default are both the scroll state.

The direction content attribute on marquee elements is an enumerated attribute with the following keywords and states (all non-conforming):

Keyword	State
`left`	left
`right`	right
`up`	up
`down`	down

The attribute's missing value default and invalid value default are both the left state.

The truespeed content attribute on marquee elements is a boolean attribute.

A marquee element has a marquee scroll interval, which is obtained as follows:

If the element has a scrolldelay attribute, and parsing its value using the rules for parsing non-negative integers does not return an error, then let delay be the parsed value. Otherwise, let delay be 85.
If the element does not have a truespeed attribute, and the delay value is less than 60, then let delay be 60 instead.
The marquee scroll interval is delay, interpreted in milliseconds.

A marquee element has a marquee scroll distance, which, if the element has a scrollamount attribute, and parsing its value using the rules for parsing non-negative integers does not return an error, is the parsed value interpreted in CSS pixels, and otherwise is 6 CSS pixels.

A marquee element has a marquee loop count, which, if the element has a loop attribute, and parsing its value using the rules for parsing integers does not return an error or a number less than 1, is the parsed value, and otherwise is −1.

The loop IDL attribute, on getting, must return the element's marquee loop count; and on setting, if the new value is different than the element's marquee loop count and either greater than zero or equal to −1, must set the element's loop content attribute (adding it if necessary) to the valid integer that represents the new value. (Other values are ignored.)

A marquee element also has a marquee current loop index, which is zero when the element is created.

The rendering layer will occasionally increment the marquee current loop index, which must cause the following steps to be run:

If the marquee loop count is −1, then return.
Increment the marquee current loop index by one.
If the marquee current loop index is now greater than or equal to the element's marquee loop count, turn off the marquee element.

16.3.2 Frames

The frameset element acts as the body element in documents that use frames.

The frameset element must implement the HTMLFrameSetElement interface.

[Exposed=Window]
interface HTMLFrameSetElement : HTMLElement {
  [HTMLConstructor] constructor();

  [CEReactions, Reflect] attribute DOMString cols;
  [CEReactions, Reflect] attribute DOMString rows;
};
HTMLFrameSetElement includes WindowEventHandlers;

The frameset element exposes as event handler content attributes a number of the event handlers of the Window object. It also mirrors their event handler IDL attributes.

The event handlers of the Window object named by the Window-reflecting body element event handler set, exposed on the frameset element, replace the generic event handlers with the same names normally supported by HTML elements.

The frame element has a content navigable similar to the iframe element, but rendered within a frameset element.

The frame HTML element post-connection steps, given insertedNode, are:

If insertedNode's node document's browsing context is null, then return.
Create a new child navigable for insertedNode.
Process the frame attributes for insertedNode, with initialInsertion set to true.

The frame HTML element removing steps, given removedNode, are to destroy a child navigable given removedNode.

Whenever a frame element with a non-null content navigable has its src attribute set, changed, or removed, the user agent must process the frame attributes.

To process the frame attributes for an element element, with an optional boolean initialInsertion (default false):

Let url be the result of running the shared attribute processing steps for iframe and frame elements given element and initialInsertion.
If url is null, then return.
If url matches about:blank and initialInsertion is true:
1. Fire an event named load at element.
2. Return.
Navigate an iframe or frame given element, url, the empty string, null, and initialInsertion.

The frame element potentially delays the load event.

The frame element must implement the HTMLFrameElement interface.

[Exposed=Window]
interface HTMLFrameElement : HTMLElement {
  [HTMLConstructor] constructor();

  [CEReactions, Reflect] attribute DOMString name;
  [CEReactions, Reflect] attribute DOMString scrolling;
  [CEReactions, ReflectURL] attribute USVString src;
  [CEReactions, Reflect] attribute DOMString frameBorder;
  [CEReactions, ReflectURL] attribute USVString longDesc;
  [CEReactions, Reflect] attribute boolean noResize;
  readonly attribute Document? contentDocument;
  readonly attribute WindowProxy? contentWindow;

  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString marginHeight;
  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString marginWidth;
};

The contentDocument getter steps are to return this's content document.

The contentWindow getter steps are to return this's content window.

16.3.3 Other elements, attributes and APIs

User agents must treat acronym elements in a manner equivalent to abbr elements in terms of semantics and for purposes of rendering.

partial interface HTMLAnchorElement {
  [CEReactions, Reflect] attribute DOMString coords;
  [CEReactions, Reflect] attribute DOMString charset;
  [CEReactions, Reflect] attribute DOMString name;
  [CEReactions, Reflect] attribute DOMString rev;
  [CEReactions, Reflect] attribute DOMString shape;
};

partial interface HTMLAreaElement {
  [CEReactions, Reflect] attribute boolean noHref;
};

partial interface HTMLBodyElement {
  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString text;
  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString link;
  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString vLink;
  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString aLink;
  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString bgColor;
  [CEReactions, Reflect] attribute DOMString background;
};

The background IDL attribute does not use ReflectURL or USVString for historical reasons.

partial interface HTMLBRElement {
  [CEReactions, Reflect] attribute DOMString clear;
};

partial interface HTMLTableCaptionElement {
  [CEReactions, Reflect] attribute DOMString align;
};

partial interface HTMLTableColElement {
  [CEReactions, Reflect] attribute DOMString align;
  [CEReactions, Reflect="char"] attribute DOMString ch;
  [CEReactions, Reflect="charoff"] attribute DOMString chOff;
  [CEReactions, Reflect] attribute DOMString vAlign;
  [CEReactions, Reflect] attribute DOMString width;
};

User agents must treat dir elements in a manner equivalent to ul elements in terms of semantics and for purposes of rendering.

The dir element must implement the HTMLDirectoryElement interface.

[Exposed=Window]
interface HTMLDirectoryElement : HTMLElement {
  [HTMLConstructor] constructor();

  [CEReactions, Reflect] attribute boolean compact;
};

partial interface HTMLDivElement {
  [CEReactions, Reflect] attribute DOMString align;
};

partial interface HTMLDListElement {
  [CEReactions, Reflect] attribute boolean compact;
};

partial interface HTMLEmbedElement {
  [CEReactions, Reflect] attribute DOMString align;
  [CEReactions, Reflect] attribute DOMString name;
  [CEReactions, Reflect] attribute unsigned long hspace;
  [CEReactions, Reflect] attribute unsigned long vspace;
};

The font element must implement the HTMLFontElement interface.

[Exposed=Window]
interface HTMLFontElement : HTMLElement {
  [HTMLConstructor] constructor();

  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString color;
  [CEReactions, Reflect] attribute DOMString face;
  [CEReactions, Reflect] attribute DOMString size; 
};

partial interface HTMLHeadingElement {
  [CEReactions, Reflect] attribute DOMString align;
};

The profile IDL attribute on head elements (with the HTMLHeadElement interface) is intentionally omitted. Unless so required by another applicable specification, implementations would therefore not support this attribute. (It is mentioned here as it was defined in a previous version of DOM.)

partial interface HTMLHRElement {
  [CEReactions, Reflect] attribute DOMString align;
  [CEReactions, Reflect] attribute DOMString color;
  [CEReactions, Reflect] attribute boolean noShade;
  [CEReactions, Reflect] attribute DOMString size;
  [CEReactions, Reflect] attribute DOMString width;
};

partial interface HTMLHtmlElement {
  [CEReactions, Reflect] attribute DOMString version;
};

partial interface HTMLIFrameElement {
  [CEReactions, Reflect] attribute DOMString align;
  [CEReactions, Reflect] attribute DOMString scrolling;
  [CEReactions, Reflect] attribute DOMString frameBorder;
  [CEReactions, ReflectURL] attribute USVString longDesc;

  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString marginHeight;
  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString marginWidth;
};

partial interface HTMLImageElement {
  [CEReactions, Reflect] attribute DOMString name;
  [CEReactions, ReflectURL] attribute USVString lowsrc;
  [CEReactions, Reflect] attribute DOMString align;
  [CEReactions, Reflect] attribute unsigned long hspace;
  [CEReactions, Reflect] attribute unsigned long vspace;
  [CEReactions, ReflectURL] attribute USVString longDesc;

  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString border;
};

partial interface HTMLInputElement {
  [CEReactions, Reflect] attribute DOMString align;
  [CEReactions, Reflect] attribute DOMString useMap;
  [CEReactions, Reflect] attribute unsigned long hspace;
  [CEReactions, Reflect] attribute unsigned long vspace;
};

partial interface HTMLLegendElement {
  [CEReactions, Reflect] attribute DOMString align;
};

partial interface HTMLLIElement {
  [CEReactions, Reflect] attribute DOMString type;
};

partial interface HTMLLinkElement {
  [CEReactions, Reflect] attribute DOMString charset;
  [CEReactions, Reflect] attribute DOMString rev;
  [CEReactions, Reflect] attribute DOMString target;
};

User agents must treat listing elements in a manner equivalent to pre elements in terms of semantics and for purposes of rendering.

partial interface HTMLMenuElement {
  [CEReactions, Reflect] attribute boolean compact;
};

partial interface HTMLMetaElement {
  [CEReactions, Reflect] attribute DOMString scheme;
};

User agents may treat the scheme content attribute on the meta element as an extension of the element's name content attribute when processing a meta element with a name attribute whose value is one that the user agent recognizes as supporting the scheme attribute.

User agents are encouraged to ignore the scheme attribute and instead process the value given to the metadata name as if it had been specified for each expected value of the scheme attribute.

For example, if the user agent acts on meta elements with name attributes having the value "eGMS.subject.keyword", and knows that the scheme attribute is used with this metadata name, then it could take the scheme attribute into account, acting as if it was an extension of the name attribute. Thus the following two meta elements could be treated as two elements giving values for two different metadata names, one consisting of a combination of "eGMS.subject.keyword" and "LGCL", and the other consisting of a combination of "eGMS.subject.keyword" and "ORLY":

<!-- this markup is invalid -->
<meta name="eGMS.subject.keyword" scheme="LGCL" content="Abandoned vehicles">
<meta name="eGMS.subject.keyword" scheme="ORLY" content="Mah car: kthxbye">

The suggested processing of this markup, however, would be equivalent to the following:

<meta name="eGMS.subject.keyword" content="Abandoned vehicles">
<meta name="eGMS.subject.keyword" content="Mah car: kthxbye">

HTMLObjectElement/useMap

Support in all current engines.

Firefox1+Safari3+Chrome1+

Opera12.1+Edge79+

Edge (Legacy)12+Internet Explorer6+

Firefox Android?Safari iOS1+Chrome Android?WebView Android?Samsung Internet?Opera Android12.1+

partial interface HTMLObjectElement {
  [CEReactions, Reflect] attribute DOMString align;
  [CEReactions, Reflect] attribute DOMString archive;
  [CEReactions, Reflect] attribute DOMString code;
  [CEReactions, Reflect] attribute boolean declare;
  [CEReactions, Reflect] attribute unsigned long hspace;
  [CEReactions, Reflect] attribute DOMString standby;
  [CEReactions, Reflect] attribute unsigned long vspace;
  [CEReactions, ReflectURL] attribute DOMString codeBase;
  [CEReactions, Reflect] attribute DOMString codeType;
  [CEReactions, Reflect] attribute DOMString useMap;

  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString border;
};

partial interface HTMLOListElement {
  [CEReactions, Reflect] attribute boolean compact;
};

partial interface HTMLParagraphElement {
  [CEReactions, Reflect] attribute DOMString align;
};

The param element must implement the HTMLParamElement interface.

[Exposed=Window]
interface HTMLParamElement : HTMLElement {
  [HTMLConstructor] constructor();

  [CEReactions, Reflect] attribute DOMString name;
  [CEReactions, Reflect] attribute DOMString value;
  [CEReactions, Reflect] attribute DOMString type;
  [CEReactions, Reflect] attribute DOMString valueType;
};

User agents must treat plaintext elements in a manner equivalent to pre elements in terms of semantics and for purposes of rendering. (The parser has special behavior for this element, though.)

partial interface HTMLPreElement {
  [CEReactions, Reflect] attribute long width;
};

partial interface HTMLStyleElement {
  [CEReactions, Reflect] attribute DOMString type;
};

partial interface HTMLScriptElement {
  [CEReactions, Reflect] attribute DOMString charset;
  [CEReactions, Reflect] attribute DOMString event;
  [CEReactions, Reflect="for"] attribute DOMString htmlFor;
};

partial interface HTMLTableElement {
  [CEReactions, Reflect] attribute DOMString align;
  [CEReactions, Reflect] attribute DOMString border;
  [CEReactions, Reflect] attribute DOMString frame;
  [CEReactions, Reflect] attribute DOMString rules;
  [CEReactions, Reflect] attribute DOMString summary;
  [CEReactions, Reflect] attribute DOMString width;

  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString bgColor;
  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString cellPadding;
  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString cellSpacing;
};

partial interface HTMLTableSectionElement {
  [CEReactions, Reflect] attribute DOMString align;
  [CEReactions, Reflect="char"] attribute DOMString ch;
  [CEReactions, Reflect="charoff"] attribute DOMString chOff;
  [CEReactions, Reflect] attribute DOMString vAlign;
};

partial interface HTMLTableCellElement {
  [CEReactions, Reflect] attribute DOMString align;
  [CEReactions, Reflect] attribute DOMString axis;
  [CEReactions, Reflect] attribute DOMString height;
  [CEReactions, Reflect] attribute DOMString width;

  [CEReactions, Reflect="char"] attribute DOMString ch;
  [CEReactions, Reflect="charoff"] attribute DOMString chOff;
  [CEReactions, Reflect] attribute boolean noWrap;
  [CEReactions, Reflect] attribute DOMString vAlign;

  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString bgColor;
};

partial interface HTMLTableRowElement {
  [CEReactions, Reflect] attribute DOMString align;
  [CEReactions, Reflect="char"] attribute DOMString ch;
  [CEReactions, Reflect="charoff"] attribute DOMString chOff;
  [CEReactions, Reflect] attribute DOMString vAlign;

  [CEReactions, Reflect] attribute [LegacyNullToEmptyString] DOMString bgColor;
};

partial interface HTMLUListElement {
  [CEReactions, Reflect] attribute boolean compact;
  [CEReactions, Reflect] attribute DOMString type;
};

User agents must treat xmp elements in a manner equivalent to pre elements in terms of semantics and for purposes of rendering. (The parser has special behavior for this element though.)

partial interface Document {
  [CEReactions] attribute [LegacyNullToEmptyString] DOMString fgColor;
  [CEReactions] attribute [LegacyNullToEmptyString] DOMString linkColor;
  [CEReactions] attribute [LegacyNullToEmptyString] DOMString vlinkColor;
  [CEReactions] attribute [LegacyNullToEmptyString] DOMString alinkColor;
  [CEReactions] attribute [LegacyNullToEmptyString] DOMString bgColor;

  [SameObject] readonly attribute HTMLCollection anchors;
  [SameObject] readonly attribute HTMLCollection applets;

  undefined clear();
  undefined captureEvents();
  undefined releaseEvents();

  [SameObject] readonly attribute HTMLAllCollection all;
};

The attributes of the Document object listed in the first column of the following table must reflect the content attribute on the body element with the name given in the corresponding cell in the second column on the same row, if the body element is a body element (as opposed to a frameset element). When there is no body element or if it is a frameset element, the attributes must instead return the empty string on getting and do nothing on setting.

IDL attribute	Content attribute
`fgColor`	`text`
`linkColor`	`link`
`vlinkColor`	`vlink`
`alinkColor`	`alink`
`bgColor`	`bgcolor`

The anchors attribute must return an HTMLCollection rooted at the Document node, whose filter matches only a elements with name attributes.

The applets attribute must return an HTMLCollection rooted at the Document node, whose filter matches nothing. (It exists for historical reasons.)

The clear(), captureEvents(), and releaseEvents() methods must do nothing.

The all attribute must return an HTMLAllCollection rooted at the Document node, whose filter matches all elements.

partial interface Window {
  undefined captureEvents();
  undefined releaseEvents();

  [Replaceable, SameObject] readonly attribute External external;
};

The captureEvents() and releaseEvents() methods must do nothing.

The external attribute of the Window interface must return an instance of the External interface:

[Exposed=Window]
interface External {
  undefined AddSearchProvider();
  undefined IsSearchProviderInstalled();
};

The AddSearchProvider() and IsSearchProviderInstalled() methods must do nothing.

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