[Javascript] what are the the allowed font style and font size in IE ?

[M. Amin]

Dear All,
 I'm developing a web application on IE in which i give the user the
capability to change the font style and the font size of a dynamically
generated html reports,
and i want to know what are the the allowed font styles and font size in IE
? so that my application be compatible with html specifications.

Regards,
 M. Amin