DocumentationMathematicaBuilt-in FunctionsNotebooksFont and Text Options
FontSize is an option for Cell, StyleBox and StyleForm which specifies the default size in printer's points of the font in which to render text.
The size of a font is typically taken to be the distance from the top of the highest character to the bottom of the lowest character.
A printer's point is approximately of an inch.
Fonts with the same nominal point size may not look the same size to the eye.
See Section 2.9.9 and Section 2.11.10.
See also: FontWeight, FontTracking, ScriptMinSize, ScriptSizeMultipliers.
New in Version 3.