font
Alters the font appearance of the text it encloses. 

This tag is deprecated. The preferred CSS style properties that replace this tag are color, font-weight, font-family, font-size, and font-style attributes.

attributes

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.
color
Colors must be given by name or by 6-digit hex.
Names are:
black, white, aqua, blue, fuchsia, gray, green, lime, maroon, navy, olive, purple, red, silver, teal, yellow
face
Specifies a font face for the text. This attribute is deprecated, the use of CSS font properties is preferred.
Note: the use of comma-separated font lists is not supported in the Pocket PC version of Microsoft Reader.
size
Specifies a particular font size between 1 and 7. 1 being the smallest and 7 the largest. This attribute is deprecated. Using a plus or minus sign before the numeral makes the change in font size relative to the default or base body font size.
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".
title
This attribute is ignored.