Plugin Font
Use this wiki plugin, introduced in Tiki8, to format the font type and size of text.

Parameters

Introduced in Tiki 8.
Go to the source code
Preferences required: wikiplugin_font

Parameters	Accepted Values	Description	Since
(body of plugin)		Content
`size`	text	The size of the font. This can be pixels, percentage or any other specification that is supported by the HTML/CSS standard. See here for details. The "px" suffix can be omitted. For instance, use `size=15` or `size=15px` for a font size of 15 pixels.	8.0
`family`	(blank)\| sans serif\| serif\| monospace\| Arial\| Century Gothic\| Comic Sans MS\| Courier New\| Tahoma\| Times New Roman\| Verdana	Select the font family to display the content.	8.0

Example

This code:

{FONT(family="Comic Sans MS" size="20")}This text is shown in Comic Sans MS font 
and 
the size is 20{FONT}

Would produce:

This text is shown in Comic Sans MS font
and
the size is 20

Google Web Fonts
PluginMono - display text in a monospace font
Wiki-Syntax Text: Quick Reference Basic Text Formatting - which shows a wiki-syntax shortcut to producing monospace text