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1.3 Microsoft Implementations

The following Microsoft web browser versions implement some portion of the CSS specification:

  • Windows Internet Explorer 8

  • Windows Internet Explorer 9

  • Windows Internet Explorer 10

  • Internet Explorer 11

  • Internet Explorer 11 for Windows 10

  • Microsoft Edge

Each browser version may implement multiple document rendering modes. The modes vary from one another in support of the standard. The following table lists the document modes in each browser version that support the [SelectorsAPILevel1] Selectors API Level 1 specification.

Browser Version

Document Modes Supported

Internet Explorer 8

IE8 Mode

Internet Explorer 9

IE8 Mode

IE9 Mode

Internet Explorer 10

IE8 Mode

IE9 Mode

IE10 Mode

Internet Explorer 11

IE8 Mode

IE9 Mode

IE10 Mode

IE11 Mode

Internet Explorer 11 for Windows 10

IE8 Mode

IE9 Mode

IE10 Mode

IE11 Mode

Microsoft Edge

EdgeHTML Mode

For each variation presented in this document there is a list of the document modes and browser versions that exhibit the behavior described by the variation. All combinations of modes and versions that are not listed conform to the specification. For example, the following list for a variation indicates that the variation exists in three document modes in all browser versions that support these modes:

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

Note: "Standards Mode" in Windows 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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