2.1.1 [DOM Level 2 - Style] Section 1.2, Style Sheet Interfaces

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V0001:

The specification states:

 href of type DOMString, readonly
 If the style sheet is a linked style sheet, the value of its attribute is its 
 location. For inline style sheets, the value of this attribute is null.

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

The href attribute of the StyleSheet interface is not treated as read-only. It is possible to get and set the href attribute. If href is set to a new value, the new style sheet is read and applied to the document in place of the original style sheet.

The href attribute for an inline style sheet is returned as an empty string, instead of null.

V0002:

The specification states:

 media of type MediaList, readonly
 The intended destination media for style information. The media is often specified 
 in the ownerNode. If no media has been specified, the MediaList will be empty.

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

The media attribute of the StyleSheet interface has read/write access; it is of type string, not MediaList.

V0003:

The specification states: 

 ownerNode of type Node, readonly
 The node that associates this style sheet with the document. For HTML, this may be 
 the corresponding LINK or STYLE element. For XML, it may be the linking processing 
 instruction. For style sheets that are included by other style sheets, the value of 
 this attribute is null.

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

The ownerNode attribute of the StyleSheet interface is not supported. Similar functionality is provided by the owningElement attribute.

V0004:

The specification states: 

 title of type DOMString, readonly
 The advisory title. The title is often specified in the ownerNode.

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The title attribute of the StyleSheet interface has read/write access.

V0005:

The specification states:

 The MediaList interface provides the abstraction of an ordered collection of media, 
 without defining or constraining how this collection is implemented. An empty list 
 is the same as a list that contains the medium "all".
 The items in the MediaList are accessible via an integral index, starting from 0.

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

The MediaList interface is not supported. The media attribute of the StyleSheet interface is of type string, not MediaList.