1.5 Applicability Statement

This document specifies a set of extensions to the [HTML] and [DOM Level 2 - HTML] specifications that are implemented in Microsoft web browsers.

Each browser version may implement multiple document rendering modes. The modes vary from one to another in support of the standard. The following table lists the document modes supported by each browser version.

Browser Version

Document Modes Supported

Windows Internet Explorer 7

Quirks Mode

Standards Mode

Windows Internet Explorer 8

Quirks mode

IE7 Mode

IE8 Mode

Windows Internet Explorer 9

Quirks Mode

IE7 Mode

IE8 Mode

IE9 Mode

Windows Internet Explorer 10

Quirks Mode

IE7 Mode

IE8 Mode

IE9 Mode

IE10 Mode

Internet Explorer 11

Quirks Mode

IE7 Mode

IE8 Mode

IE9 Mode

IE10 Mode

IE11 Mode

Microsoft Edge

EdgeHTML Mode

Many of the extensions listed in this documented are accompanied by a statement that indicates what modes and versions have the extension. The statement has a list of document modes followed by a list of browser versions in parentheses. For any listed version the extension is in all listed modes that the version provides. Here is an example of an availability statement:

Quirks Mode, IE7 Mode, IE8 Mode, and IE9 Mode (All Versions)

This means that the extension is in Quirks mode in all browser versions that are shown in the table above to have Quirks Mode, and so on for IE7 Mode, IE8 Mode, and IE9 Mode.

If an extension does not have an availability statement, all modes of all versions shown in the table above have the extension.

Note: "Standards mode" in Internet Explorer 7 and "IE7 mode" in Internet Explorer 8 refer to the same document mode. "IE7 mode" is the preferred way of referring to this document mode across all versions of the browser.

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