link
Link to external style sheets.
Sample: <link type="text/x-oeb1-css" href="style0.css" rel="stylesheet" />

href
Specifies the URI link to external style sheets.
id
Provides an element with a unique name within a single document. This is especially useful in works with extensive cross-referencing and linking, such as dictionaries, encyclopedias, or travel guides. Use of ids simplifies linking and updates.
class
Affiliates an element with one or more classes.
style
Attaches a list of inline (name:value paired) CSS properties to a specific tag, for example: style="name:value;name:value"
Note: Media types other than "text/x-oeb1-css" will be ignored with a warning in a document of type "text/x-oeb1-document".
media
This attribute is ignored.
rel
Provides information regarding the relationship of the item being linked to. This attribute is ignored.
rev
Specifies the relationship of this document to the document being linked to. This attribute is ignored.
title
This attribute is ignored.