Comparison of layout engines (DOM) Totally Explained

Everything about Comparison Of Layout Engines Dom totally explained

The following tables compare DOM compatibility and support for a number of layout engines. Please see the individual products' articles for further information. This article isn't all-inclusive or necessarily up-to-date. Unless otherwise specified in footnotes, comparisons are based on the stable versions without any add-ons, extensions or external programs.
For features that are fully supported (based on DOM Level 2 or DOM Level 3 modules that are under W3C Recommendation), an exact version number is given if it's certain that the feature was added in such version; otherwise, a rough version number is given (for example < 2.0 means that the feature was supported since version 2.0 or below). DOM Level 0 and DOM Level 3 modules that are still under development are not included.

General overview

	Trident	Tasman	Gecko	WebKit	KHTML	Presto	iCab
DOM1
DOM2
DOM3

Core (Fundamental)

The interfaces within this section are considered fundamental, and must be fully implemented by all conforming implementations of the DOM, including all HTML DOM implementations. DOM2 DOM3 DOM2 DOM3 DOM2 DOM3 DOM2 DOM2 DOM3 DOM2 DOM3 DOM3

		Trident	Tasman	Gecko	WebKit	KHTML	Presto	iCab
Exception DOMException
DOM1	`code`	?	?		?	?		?
Interface DOMStringList
DOM3	`length`	rowspan="3"	rowspan="3"	rowspan="3"	rowspan="3"	?	rowspan="3"	?
	`contains`	?	?
	`item`	?	?
Interface NameList
DOM3	`length`	rowspan="5"	rowspan="5"	rowspan="5"	rowspan="5"	rowspan="5"	rowspan="5"	rowspan="5"
	`getName`
	`getNamespaceURI`
	`contains`
	`containsNS`
Interface DOMImplementationList
DOM3	`length`	rowspan="2"	rowspan="2"	rowspan="2"	rowspan="2"	rowspan="2"	rowspan="2"	rowspan="2"
DOM3	`item`
Interface DOMImplementationSource
DOM3	`getDOMImplementation`	rowspan="2"	rowspan="2"	rowspan="2"	rowspan="2"	rowspan="2"	rowspan="2"	rowspan="2"
DOM3	`getDOMImplementationList`
Interface DOMImplementation
DOM1	`hasFeature`		?			?		?
`createDocumentType`	rowspan="2"	rowspan="2"	rowspan="2"	rowspan="2"	?	rowspan="2"	?
`createDocument`	?	?
`getFeature`					?		?
Interface DocumentFragment
DOM1	`(no properties)`				?	?		?
Interface Document
DOM1	`doctype`				rowspan="12"	?		?
	`implementation`				?		?
	`documentElement`				?		?
	`createElement`				?		?
	`createDocumentFragment`				?		?
	`createTextNode`				?		?
	`createComment`				?		?
	`createCDATASection`				?		?
	`createProcessingInstruction`		?		?		?
	`createAttribute`				?		?
	`createEntityReference`		?		?		?
	`getElementsByTagName`				?		?
`importNode`			rowspan="5"	rowspan="5"	?		?
`createElementNS`			?		?
`createAttributeNS`			?		?
`getElementsByTagNameNS`			?		?
`getElementById`			?		?
`inputEncoding`	rowspan="10"	rowspan="10"	rowspan="10"		?		?
`xmlEncoding`		?		?
`xmlStandalone`		?		?
`xmlVersion`		?		?
`domConfig`		?		?
`strictErrorChecking`		?		?
`documentURI`		?		?
`adoptNode`		?		?
`normalizeDocument`		?		?
`renameNode`		?		?
Interface Node
DOM1	`nodeName`		rowspan="17"		rowspan="17"	?	rowspan="17"	?
	`nodeValue`			?	?
	`nodeType`			?	?
	`parentNode`			?	?
	`childNodes`			?	?
	`firstChild`			?	?
	`lastChild`			?	?
	`previousSibling`			?	?
	`nextSibling`			?	?
	`attributes`			?	?
	`ownerDocument`			?	?
	`insertBefore`			?	?
	`replaceChild`			?	?
	`removeChild`			?	?
	`appendChild`			?	?
	`hasChildNodes`			?	?
	`cloneNode`			?	?
`namespaceURI`		rowspan="5"	rowspan="5"	rowspan="5"	?		?
`prefix`		?		?
`localName`		?		?
`isSupported`		?		?
`hasAttributes`		?		?
`baseURI`		rowspan="11"		rowspan="11"	?		?
`textContent`			?		?
`compareDocumentPosition`			?		?
`isSameNode`			?		?
`lookupPrefix`			?		?
`isDefaultNamespace`			?		?
`lookupNamespaceURI`			?		?
`isEqualNode`			?		?
`getFeature`			?		?
`setUserData`			?		?
`getUserData`			?		?
Interface NodeList
DOM1	`length`	rowspan="2"	rowspan="2"	rowspan="2"	rowspan="2"	?	rowspan="2"	?
DOM1	`item`	?	?
Interface NamedNodeMap
DOM1	`length`	rowspan="5"	rowspan="5"	rowspan="5"	rowspan="5"	?	rowspan="5"	?
	`getNamedItem`	?	?
	`setNamedItem`	?	?
	`removeNamedItem`	?	?
	`item`	?	?
`getNamedItemNS`	rowspan="3"	rowspan="3"	rowspan="3"	rowspan="3"	?	rowspan="3"	?
`setNamedItemNS`	?	?
`removeNamedItemNS`	?	?
Interface CharacterData
DOM1	`data`	rowspan="7"	rowspan="7"	rowspan="7"	rowspan="7"	?	rowspan="7"	?
	`length`	?	?
	`substringData`	?	?
	`appendData`	?	?
	`insertData`	?	?
	`deleteData`	?	?
	`replaceData`	?	?
Interface Attr
DOM1	`name`		?		rowspan="3"	?	rowspan="3"	?
	`specified`					?
	`value`		?		?	?
`ownerElement`		?			?		?
`schemaTypeInfo`	rowspan="2"	rowspan="2"	rowspan="2"	rowspan="2"	?	rowspan="2"	?
`isId`	?	?
Interface Element
DOM1	`tagName`		rowspan="9"	rowspan="9"		?	rowspan="9"	?
	`getAttribute`			?	?
	`setAttribute`			?	?
	`removeAttribute`			?	?
	`getAttributeNode`			?	?
	`setAttributeNode`			?	?
	`removeAttributeNode`			?	?
	`getElementsByTagName`			?	?
	`normalize`			?	?
`getAttributeNS`	rowspan="8"		rowspan="8"	rowspan="8"	?	rowspan="8"	?
`setAttributeNS`		?	?
`removeAttributeNS`		?	?
`getAttributeNodeNS`		?	?
`setAttributeNodeNS`		?	?
`getElementsByTagNameNS`		?	?
`hasAttribute`		?	?
`hasAttributeNS`		?	?
`schemaTypeInfo`	rowspan="4"	rowspan="4"	rowspan="4"	rowspan="4"	?	rowspan="4"	?
`setIdAttribute`	?	?
`setIdAttributeNS`	?	?
`setIdAttributeNode`	?	?
Interface Text
DOM1	`splitText`					?		?
`isElementContentWhitespace`	rowspan="3"	rowspan="3"	rowspan="3"	rowspan="3"	?		?
`wholeText`	?		?
`replaceWholeText`	?		?
Interface Comment
DOM1	`(no properties)`					?		?
Interface TypeInfo
DOM3	`typeName`	rowspan="3"	rowspan="3"	rowspan="3"	rowspan="3"	rowspan="3"	rowspan="3"	rowspan="3"
	`typeNamespace`
	`isDerivedFrom`
Interface UserDataHandler
DOM3	`handle`
Interface DOMError
DOM3	`severity`	rowspan="6"	rowspan="6"	rowspan="6"	rowspan="6"	rowspan="6"		rowspan="6"
	`message`
	`type`
	`relatedException`
	`relatedData`
	`location`
Interface DOMErrorHandler
DOM3	`handleError`
Interface DOMLocator
DOM3	`lineNumber`	rowspan="6"	rowspan="6"	rowspan="6"	rowspan="6"	rowspan="6"	rowspan="6"	rowspan="6"
	`columnNumber`
	`byteOffset`
	`utf16Offset`
	`relatedNode`
	`uri`
Interface DOMConfiguration
DOM3	`parameterNames`	rowspan="4"	rowspan="4"	rowspan="4"	rowspan="4"	?	rowspan="4"	?
	`setParameter`	?	?
	`getParameter`	?	?
	`canSetParameter`	?	?

Trident Core (Fundamental) notes

getElementById — returns elements with name attribute set to value being found, not only id. Present in IE7. (External Link)
getAttribute, setAttribute, removeAttribute — returns, sets, and removes, respectively, the corresponding DOM property instead of the string value of the attribute. For example, element.getAttribute('onclick') returns element.onclick, which is a reference to a function and not a string. Another example: element.removeAttribute('class') doesn't work as expected; element.removeAttribute('className') must be called instead. getAttribute and setAttribute with 'style' as their parameter don't work, but the inline style can be retrieved by setting the non-standard iFlags parameter to 2 (for example by calling element.getAttribute('style',2)), or accessed using the Node.style property. (External Link)
AttributeNode.specified — Does not set specified to true if ownerElement should be null.
Node.isSameNode — isSameNode is only supported for XML documents, not HTML ones.

Tasman Core (Fundamental) notes

AttributeNode.specified — Does not set specified to true if ownerElement should be null.

Gecko Core (Fundamental) notes

insertBefore, replaceChild, removeChild, appendChild — Fails on Attr nodes (External Link

). appendChild doesn't work as expected for DocumentFragment nodes prior to 1.8 (External Link

createEntityReference — Supported, but returns null when the method is checked (External Link

AttributeNode.specified — Does not set specified to true if ownerElement is null (External Link

). As it also doesn't create Attribute Nodes for default values specified in the DTD, it renders this property absolutely useless.

Presto Core (Fundamental) notes

getElementById — returns elements with name attribute set to value being found, not only id (External Link

). Opera 9.50a1 build 9500 will fix this bug.

URI attribute value — In versions prior to Opera 9, all URI attribute values are resolved to full URI. Hence the value from getAttribute and getAttributeNode could be wrong if relative URIs are used.

Attributes that are not supported in the layout engine are still parsed and available through DOM. E.g. char and charoff are available under .ch and .chOff.

In Opera 8.54 methods DOMImplementation.createDocument and DOMDocument.createElementNS both fail to accept any non-empty namespace URI. They work in Opera 9 Beta 2 and they may also have worked before (somebody with Opera 8, please check.) The symptom is that the namespaceURI property is null/empty and serialization gives wrong result.

Core (Extended)

The interfaces defined here form part of the DOM Core specification, but objects that expose these interfaces will never be encountered in a DOM implementation that deals only with HTML. DOM2 DOM3

		Gecko	WebKit	KHTML	Presto	iCab
Interface CDATASection
DOM1	`(no properties)`			?		?
Interface DocumentType
DOM1	`name`			?		?
	`entities`	(External Link)		?		?
	`notations`	(External Link)		?		?
`publicId`			?		?
`systemId`			?		?
`internalSubset`			?		?
Interface Notation
DOM1	`publicId`			?		?
DOM1	`systemId`			?		?
Interface Entity
DOM1	`publicId`			?		?
	`systemId`			?		?
	`notationName`			?		?
`inputEncoding`			?		?
`xmlEncoding`			?		?
`xmlVersion`			?		?
Interface EntityReference
DOM1	`(no properties)`			?		?
Interface ProcessingInstruction
DOM1	`target`			?		?
DOM1	`data`			?		?

HTML

The interfaces found within this section are not mandatory. This section extends the DOM Core API to describe objects and methods specific to HTML documents, and XHTML documents. In general, the functionality needed to manipulate hierarchical document structures, elements, and attributes will be found in the core section; functionality that depends on the specific elements defined in HTML will be found in this section. Elements deprecated since HTML 4.01 are not listed. Some elements and attributes listed here are deprecated in XHTML 1.1. For example, presentation attributes, image maps, frames and targets. DOM2 DOM2 DOM2

		Trident	Tasman	Gecko	WebKit	KHTML	Presto	iCab
Interface HTMLCollection
DOM1	`length`	rowspan="3"	?		?	?		?
	`item`	?		?	?		?
	`namedItem`	?		?	?		?
Interface HTMLOptionsCollection
DOM2	`length`	?	?		?	?		?
	`item`	?	?		?	?		?
	`namedItem`	?	?		?	?		?
Interface HTMLDocument
DOM1	`title`				?	?		?
	`referrer`				?	?		?
	`domain`				?	?		?
	`URL`				?	?		?
	`body`				?	?		?
	`images`				?	?		?
	`applets`				?	?		?
	`links`				?	?		?
	`forms`				?	?		?
	`anchors`				?	?		?
	`cookie`				?	?		?
	`open`				?	?		?
	`close`				?	?		?
	`write`				?	?		?
	`writeln`				?	?		?
	`getElementsByName`		?		?	?		?
Interface HTMLElement
DOM1	`id`				?	?		?
	`title`				?	?		?
	`lang`				?	?		?
	`dir`				?	?		?
	`className`				?	?		?
Interface HTMLHtmlElement
DOM1	`version`		?		?	?		?
Interface HTMLHeadElement
DOM1	`profile`		?		?	?		?
Interface HTMLLinkElement
DOM1	`disabled`				?	?		?
	`charset`				?	?		?
	`href`				?	?		?
	`hreflang`				?	?		?
	`media`				?	?		?
	`rel`				?	?		?
	`rev`				?	?		?
	`target`				?	?		?
	`type`				?	?		?
Interface HTMLTitleElement
DOM1	`text`				?	?		?
Interface HTMLMetaElement
DOM1	`content`				?	?		?
	`httpEquiv`				?	?		?
	`name`				?	?		?
	`scheme`		?		?	?		?
Interface HTMLBaseElement
DOM1	`href`				?	?		?
DOM1	`target`				?	?		?
Interface HTMLStyleElement
DOM2	`disabled`	?	?		?	?		?
	`media`				?	?		?
	`type`				?	?		?
Interface HTMLBodyElement
DOM1	`aLink`				?	?		?
	`background`				?	?		?
	`bgColor`				?	?		?
	`link`				?	?		?
	`text`				?	?		?
	`vLink`				?	?		?
Interface HTMLFormElement
DOM1	`elements`				?	?		?
	`length`				?	?		?
	`name`				?	?		?
	`acceptEncoding`	?	?		?	?		?
	`action`				?	?		?
	`enctype`				?	?		?
	`method`				?	?		?
	`target`				?	?		?
	`submit`				?	?		?
	`reset`				?	?		?
Interface HTMLSelectElement
DOM1	`type`				?	?		?
	`selectedIndex`				?	?		?
	`value`				?	?		?
	`length`				?	?		?
	`form`	?	?		?	?		?
	`options`				?	?		?
	`disabled`				?	?		?
	`multiple`				?	?		?
	`name`				?	?		?
	`size`				?	?		?
	`tabIndex`	?	?		?	?		?
	`add`	?	?		?	?		?
	`remove`	?	?		?	?		?
	`blur`				?	?		?
	`focus`				?	?		?
Interface HTMLOptGroupElement
DOM1	`disabled`	?	?		?	?		?
DOM1	`label`				?	?		?
Interface HTMLOptionElement
DOM1	`form`				?	?		?
	`defaultSelected`				?	?		?
	`text`				?	?		?
	`index`	?	?		?	?		?
	`disabled`	?	?		?	?		?
	`label`				?	?		?
	`selected`				?	?		?
	`value`				?	?		?
Interface HTMLInputElement
DOM1	`defaultValue`				?	?		?
	`defaultChecked`				?	?		?
	`form`				?	?		?
	`accept`	?	?		?	?		?
	`accesskey`	?	?		?	?		?
	`align`	?	?		?	?		?
	`alt`	?	?		?	?		?
	`checked`				?	?		?
	`disabled`				?	?		?
	`maxLength`				?	?		?
	`name`				?	?		?
	`readOnly`				?	?		?
	`size`				?	?		?
	`src`				?	?		?
	`tabIndex`	?	?		?	?		?
	`type`				?	?		?
	`useMap`	?	?		?	?		?
	`value`				?	?		?
	`blur`				?	?		?
	`focus`				?	?		?
	`select`				?	?		?
	`click`				?	?		?
Interface HTMLTextAreaElement
DOM1	`defaultValue`				?	?		?
	`form`				?	?		?
	`accesskey`	?	?		?	?		?
	`cols`				?	?		?
	`disabled`				?	?		?
	`name`				?	?		?
	`readOnly`				?	?		?
	`rows`				?	?		?
	`tabIndex`	?	?		?	?		?
	`type`				?	?		?
	`value`				?	?		?
	`blur`				?	?		?
	`focus`				?	?		?
	`select`				?	?		?
Interface HTMLButtonElement
DOM1	`form`				?	?		?
	`accesskey`	?	?		?	?		?
	`disabled`				?	?		?
	`name`				?	?		?
	`tabIndex`	?	?		?	?		?
	`type`				?	?		?
	`value`				?	?		?
Interface HTMLLabelElement
DOM1	`form`				?	?		?
	`accesskey`				?	?		?
	`htmlFor`				?	?		?
Interface HTMLFieldSetElement
DOM1	`form`				?	?		?
Interface HTMLLegendElement
DOM1	`form`				?	?		?
	`accesskey`	?	?		?	?		?
	`align`				?	?		?
Interface HTMLUListElement
DOM1	`compact`				?	?		?
DOM1	`type`				?	?		?
Interface HTMLOListElement
DOM1	`compact`				?	?		?
	`start`				?	?		?
	`type`				?	?		?
Interface HTMLDListElement
DOM1	`compact`				?	?		?
Interface HTMLLIElement
DOM1	`type`				?	?		?
DOM1	`value`				?	?		?
Interface HTMLDivElement
DOM1	`align`	?	?		?	?		?
Interface HTMLParagraphElement
DOM1	`align`	?	?		?	?		?
Interface HTMLHeadingElement
DOM1	`align`				?	?		?
Interface HTMLQuoteElement
DOM1	`cite`				?	?		?
Interface HTMLPreElement
DOM1	`width`	?	?		?	?		?
Interface HTMLBRElement
DOM1	`clear`				?	?		?
Interface HTMLHRElement
DOM1	`align`				?	?		?
	`noShade`				?	?		?
	`size`				?	?		?
	`width`				?	?		?
Interface HTMLModElement
DOM1	`cite`		?		?	?		?
DOM1	`dateTime`	?	?		?	?		?
Interface HTMLAnchorElement
DOM1	`accesskey`	?	?		?	?		?
	`charset`				?	?		?
	`coords`				?	?		?
	`href`				?	?		?
	`hreflang`				?	?		?
	`name`				?	?		?
	`rel`				?	?		?
	`rev`				?	?		?
	`shape`				?	?		?
	`tabIndex`	?	?		?	?		?
	`target`				?	?		?
	`type`				?	?		?
	`blur`	?	?		?	?		?
	`focus`	?	?		?	?		?
Interface HTMLImageElement
DOM1	`name`				?	?		?
	`align`				?	?		?
	`alt`				?	?		?
	`border`				?	?		?
	`height`				?	?		?
	`hspace`				?	?		?
	`isMap`				?	?		?
	`longDesc`		?		?	?		?
	`src`				?	?		?
	`useMap`				?	?		?
	`vspace`				?	?		?
	`width`				?	?		?
Interface HTMLObjectElement
DOM1	`form`	?	?		?	?		?
	`code`				?	?		?
	`align`				?	?		?
	`archive`	?	?		?	?		?
	`border`	?	?		?	?		?
	`codeBase`				?	?		?
	`codeType`				?	?		?
	`data`				?	?		?
	`declare`	?	?		?	?		?
	`height`				?	?		?
	`hspace`				?	?		?
	`name`				?	?		?
	`standby`	?	?		?	?		?
	`tabIndex`	?	?		?	?		?
	`type`				?	?		?
	`useMap`	?	?		?	?		?
	`vspace`				?	?		?
	`width`				?	?		?
`contentDocument`				?	?		?
Interface HTMLParamElement
DOM1	`name`	?	?		?	?		?
	`type`	?	?		?	?		?
	`value`	?	?		?	?		?
	`valueType`		?		?	?		?
Interface HTMLMapElement
DOM1	`areas`				?	?		?
DOM1	`name`				?	?		?
Interface HTMLAreaElement
DOM1	`accesskey`	?	?		?	?		?
	`alt`				?	?		?
	`coords`				?	?		?
	`hrefs`	?	?		?	?		?
	`noHrefs`	?	?		?	?		?
	`shape`				?	?		?
	`tabIndex`	?	?		?	?		?
	`target`				?	?		?
Interface HTMLScriptElement
DOM1	`text`				?	?		?
	`htmlFor (reserved for future use)`				?	?		?
	`event (reserved for future use)`				?	?		?
	`charset`	?	?		?	?		?
	`defer`				?	?		?
	`src`				?	?		?
	`type`				?	?		?
	`target`	?	?		?	?		?
Interface HTMLTableElement
DOM1	`caption`				?	?		?
	`tHead`				?	?		?
	`tFoot`				?	?		?
	`rows`				?	?		?
	`tBodies`				?	?		?
	`align`				?	?		?
	`bgColor`				?	?		?
	`border`				?	?		?
	`cellPadding`					?		?
	`cellSpacing`				?	?		?
	`frame`				?	?		?
	`rules`				?	?		?
	`summary`				?	?		?
	`width`				?	?		?
	`createTHead`				?	?		?
	`deleteTHead`				?	?		?
	`createTFoot`				?	?		?
	`deleteTFoot`				?	?		?
	`createCaption`				?	?		?
	`deleteCaption`				?	?		?
	`insertRow`				?	?		?
	`deleteRow`				?	?		?
Interface HTMLTableCaptionElement
DOM1	`align`				?	?		?
Interface HTMLTableColElement
DOM1	`align`				?	?		?
	`ch`				?	?		?
	`chOff`				?	?		?
	`span`				?	?		?
	`vAlign`				?	?		?
	`width`				?	?		?
Interface HTMLTableSectionElement
DOM1	`align`				?	?		?
	`ch`				?	?		?
	`chOff`				?	?		?
	`vAlign`				?	?		?
	`rows`				?	?		?
	`insertRow`				?	?		?
	`deleteRow`				?	?		?
Interface HTMLTableRowElement
DOM1	`rowIndex`				?	?		?
	`sectionRowIndex`				?	?		?
	`cells`				?	?		?
	`align`				?	?		?
	`bgColor`				?	?		?
	`ch`				?	?		?
	`chOff`				?	?		?
	`vAlign`				?	?		?
	`insertCell`				?	?		?
	`deleteCell`				?	?		?
Interface HTMLTableCellElement
DOM1	`cellIndex`					?		?
	`abbr`				?	?		?
	`align`				?	?		?
	`axis`				?	?		?
	`bgColor`				?	?		?
	`ch`				?	?		?
	`chOff`				?	?		?
	`colSpan`				?	?		?
	`headers`				?	?		?
	`height`				?	?		?
	`noWrap`				?	?		?
	`rowSpan`				?	?		?
	`scope`	?	?		?	?		?
	`vAlign`				?	?		?
	`width`				?	?		?
Interface HTMLFrameSetElement
DOM1	`cols`				?	?		?
DOM1	`rows`				?	?		?
Interface HTMLFrameElement
DOM1	`frameBorder`				?	?		?
	`longDesc`				?	?		?
	`marginHeight`				?	?		?
	`marginWidth`				?	?		?
	`name`				?	?		?
	`noResize`	4.0			?	?		?
	`scrolling`				?	?		?
	`src`				?	?		?
`contentDocument`				?	?		?
Interface HTMLIFrameSetElement
DOM1	`align`				?	?		?
	`frameBorder`	?	?		?	?		?
	`height`				?	?		?
	`longDesc`				?	?		?
	`marginHeight`				?	?		?
	`marginWidth`				?	?		?
	`name`				?	?		?
	`scrolling`				?	?		?
	`src`				?	?		?
	`width`				?	?		?
`contentDocument`				?	?		?

Trident HTML notes

profile, href, background, action, cite, longDesc, codebase, data, src — Relative URL wasn't resolved to full URL.

WebKit HTML notes

cellIndex — Always return zero (External Link

Presto HTML notes

text — Opera 8 and lower returned data at src, when it should return inline data instead.

Style (Style Sheets)

The interfaces found within this section are not mandatory. The interfaces in this section are base interfaces used to represent any type of style sheet.

		Tasman	WebKit	KHTML	Presto	iCab
Interface StyleSheet
DOM2	`type`	?	rowspan="7"	?		?
	`disabled`	?	?		?
	`ownerNode`	?	?		?
	`parentStyleSheet`	?	?		?
	`href`	?	?		?
	`title`	?	?		?
	`media`	?	?		?
Interface StyleSheetList
DOM2	`length`	?	rowspan="2"	?		?
DOM2	`item`	?	?		?
Interface MediaList
DOM2	`mediaText`	?	rowspan="5"	?		?
	`length`	?	?		?
	`item`	?	?		?
	`deleteMedium`	?	?		?
	`appendMedium`	?	?		?
Interface LinkStyle
DOM2	`sheet`	?		?		?
Interface DocumentStyle
DOM2	`styleSheets`	?		?		?

Trident Style (Style Sheets) notes

href — Relative URL isn't resolved to full URL.

media — Returns string instead of MediaList.

Style (CSS Fundamental)

The interfaces within this section are considered fundamental CSS interfaces, and must be supported by all conforming implementations of the CSS module. These interfaces represent CSS style sheets specifically.

		Tasman	Gecko	WebKit	KHTML	iCab
Interface CSSStyleSheet
DOM2	`ownerRule`	?		?	?	?
	`cssRules`				?	?
	`insertRule`				?	?
	`deleteRule`				?	?
Interface StyleSheetList
DOM2	`length`	?		?	?	?
DOM2	`item`	?		?	?	?
Interface CSSRuleList
DOM2	`length`	?		?	?	?
DOM2	`item`	?		?	?	?
Interface CSSRule
DOM2	`type`	?		?	?	?
	`cssText`			?	?	?
	`parentStyleSheet`				?	?
	`parentRule`	?		?	?	?
Interface CSSStyleRule
DOM2	`selectorText`				?	?
DOM2	`style`	?		?	?	?
Interface CSSMediaRule
DOM2	`media`	?		?	?	?
	`cssRules`	?		?	?	?
	`insertRule`	?		?	?	?
	`deleteRule`	?		?	?	?
Interface CSSFontFaceRule
DOM2	`style`	?	(External Link)	?	?	?
Interface CSSPageRule
DOM2	`selectorText`	?	(External Link)	?	?	?
DOM2	`style`	?		?	?	?
Interface CSSImportRule
DOM2	`href`				?	?
	`media`	?		?	?	?
	`styleSheet`	?		?	?	?
Interface CSSCharsetRule
DOM2	`encoding`	?		?	?	?
Interface CSSUnknownRule
DOM2	`(no properties)`	?	(External Link)	?	?	?
Interface CSSStyleDeclaration
DOM2	`cssText`	?		?	?	?
	`length`	?		?	?	?
	`parentRule`	?		?	?	?
	`getPropertyValue`				?	?
	`getPropertyCSSValue`	?	(External Link)	?	?	?
	`removeProperty`				?	?
	`getPropertyPriority`			?	?	?
	`setProperty`				?	?
	`item`	?		?	?	?
Interface CSSValue
DOM2	`cssText`	?	(External Link)	?	?	?
DOM2	`cssValueType`	?		?	?	?
Interface CSSPrimitiveValue
DOM2	`primitiveType`	?	(External Link)	?	?	?
	`setFloatValue`	?		?	?	?
	`getFloatValue`	?		?	?	?
	`setStringValue`	?		?	?	?
	`getStringValue`	?		?	?	?
	`getCounterValue`	?		?	?	?
	`getRectValue`	?		?	?	?
	`getRGBColorValue`	?		?	?	?
Interface CSSValueList
DOM2	`length`	?		?	?	?
DOM2	`item`	?		?	?	?
Interface RGBColor
DOM2	`red`	?		?	?	?
	`green`	?		?	?	?
	`blue`	?		?	?	?
Interface Rect
DOM2	`top`	?		?	?	?
	`right`	?		?	?	?
	`bottom`	?		?	?	?
	`left`	?		?	?	?
Interface Counter
DOM2	`identifier`	?		?	?	?
	`listStyle`	?		?	?	?
	`separator`	?		?	?	?
Interface ViewCSS
DOM2	`getComputedStyle`				?	?
Interface DocumentCSS
DOM2	`getOverrideStyle`	?	(External Link)	?	?	?
Interface DOMImplementationCSS
DOM2	`createCSSStyleSheet`	?	(External Link)	?	?	?
Interface ElementCSSInlineStyle
DOM2	`style`					?

Tasman Style (CSS Fundamental) notes

getPropertyPriority — Returns !important instead of important.

Style (CSS Extended)

The interfaces found within this section are not mandatory.

		Trident	WebKit	KHTML	iCab
Interface CSS2Properties
DOM2	Support this interface		?	?	?
DOM2	Properties	Please refer to comparison of layout engines (CSS) for the comparison of CSS properties.

Events

The interfaces found within this section are not mandatory. The first goal is the design of a generic event system which allows registration of event handlers, describes event flow through a tree structure, and provides basic contextual information for each event. The second goal of the event model is to provide a common subset of the current event systems used in DOM Level 0 browsers. See also DOM Events for details.

		Trident	Tasman	Gecko	WebKit	KHTML	iCab
Interface EventTarget
DOM2	`addEventListener`					?	?
	`removeEventListener`				?	?	?
	`dispatchEvent`				?	?	?
Interface EventListener
DOM2	`handleEvent`	?	?	?	?	?	?
Interface Event
DOM2	`type`				?	?	?
	`target`					?	?
	`currentTarget`				?	?	?
	`eventPhase`				?	?	?
	`bubbles`				?	?	?
	`cancelable`				?	?	?
	`timeStamp`				?	?	?
	`stopPropagation`				?	?	?
	`preventDefault`				?	?	?
	`initEvent`				?	?	?
Exception EventException
DOM2	`code`				?	?	?
Interface DocumentEvent
DOM2	`createEvent`				?	?	?
Interface UIEvent
DOM2	`view`			(External Link)	?	?	?
	`detail`				?	?	?
	`initUIEvent`				?	?	?
Events for interface UIEvent
DOM2	`DOMFocusIn`				?	?	?
	`DOMFocusOut`				?	?	?
	`DOMActivate`				?	?	?
Interface MouseEvent
DOM2	`screenX`					?	?
	`screenY`					?	?
	`clientX`					?	?
	`clientY`					?	?
	`ctrlKey`					?	?
	`shiftKey`					?	?
	`altKey`					?	?
	`metaKey`					?	?
	`button`					?	?
	`relatedTarget`					?	?
	`initMouseEvent`	?	?		?	?	?
Events for interface MouseEvent
DOM2	`click`				?	?	?
	`mousedown`				?	?	?
	`mouseup`				?	?	?
	`mouseover`				?	?	?
	`mousemove`				?	?	?
	`mouseout`				?	?	?
Interface MutationEvent
DOM2	`relatedNode`				?	?	?
	`prevValue`				?	?	?
	`newValue`				?	?	?
	`attrName`				?	?	?
	`attrChange`				?	?	?
	`initMutationEvent`				?	?	?
Events for interface MutationEvent
DOM2	`DOMSubtreeModified`			(External Link)	?	?	?
	`DOMNodeInserted`				?	?	?
	`DOMNodeRemoved`				?	?	?
	`DOMNodeRemovedFromDocument`			(External Link)	?	?	?
	`DOMNodeInsertedIntoDocument`			(External Link)	?	?	?
	`DOMAttrModified`				?	?	?
	`DOMCharacterDataModified`				?	?	?
Events for HTML
DOM2	`load`				?	?	?
	`unload`				?	?	?
	`abort`				?	?	?
	`error`				?	?	?
	`select`				?	?	?
	`change`				?	?	?
	`submit`				?	?	?
	`reset`				?	?	?
	`focus`				?	?	?
	`blur`				?	?	?
	`resize`				?	?	?
	`scroll`				?	?	?

Trident Events notes

button — Does not use W3C values.

Tasman Events notes

button — Does not use W3C values.

Gecko Events notes

target — Return text node, if any, of the target element node prior to 1.3.

timeStamp — Returns a string, but should return a Date (External Link

WebKit Events notes

target — Return text node, if any, of the target element node (fixed in v73, but reverted in v85).

clientX, clientY — Treated as pageX and pageY.

button — Does not use W3C values.

Presto Events notes

button — Does not use W3C values prior to 8.0.

Views

The interfaces found within this section are not mandatory. A document may have one or more "views" associated with it, for example, a computed view on a document after applying a CSS stylesheet, or multiple presentations (for example HTML frame) of the same document in a client. That is, a view is some alternate representation of, or a presentation of, and associated with, a source document.

		Tasman	WebKit	KHTML	iCab
Interface AbstractView
DOM2	`document`	?	?	?	?
Interface DocumentView
DOM2	`defaultView`	?	?	?	?

Trident notes

defaultView — Trident doesn't support the defaultView property for documents, but it supports another property with the same meaning which is parentWindow.

Traversal

The interfaces found within this section are not mandatory. Its interfaces provide easy-to-use, robust, selective traversal of a document's contents.

		Tasman	WebKit	KHTML	iCab
Interface NodeIterator
DOM2	`root`	?	?	?	?
	`whatToShow`	?	?	?	?
	`filter`	?	?	?	?
	`expandEntityReferences`	?	?	?	?
	`nextNode`	?	?	?	?
	`previousNode`	?	?	?	?
	`detach`	?	?	?</