You can only specify fonts that have a high probability of being installed on the reader's operating system. It is nearly impossible to have a list of more that a few font faces that will present properly in OSX, Linux, Android, iPad, Blackberry, or whatever other browser the person may use in the future.
for example IOS font list:
http://support.apple.com/kb/HT5484 includes many fonts not on other OSs.
Windows font list:
http://www.microsoft.com/typography/fonts/product.aspx?pid=161Fonts common to windows & mac:
http://www.ampsoft.net/webdesign-l/WindowsMacFonts.htmlThis is Apple's "didot bold", with a second font of "courier"This is Ubuntu's "ubuntu" font, with a second font of "courier"This is Window vista+ "Constantia" font, with a second font of "courier"Chances are that two out of three of these look like a typewriter font, which is courier, demonstrating that you have to stick with basic stuff like Arial, Georgia, or even "san-serif".
You can specify a list fallback font faces in BBcode, but you would have to do research on what might be a similar looking preinstalled typeface across platforms. Here's an example that will be stylized but differently on each OS:
this is font=MarkerFelt-Thin, Droid Sans, Arial Black, san-serifYou can have colors though.
However, there is nothing that needs to be said that can't be said using your words.