In this example using fonts from user system settings at Control Panel \ Display \ Appearance
get this feature use overrides at menutestovr2.css

Test Index
1. Test Home menutestmain.html
2. Menu Side menutestsub1.html
3. System Font menutestsub2.html
4. Different Color menutestsub3.html
5. DOM Menu Home



see also
system font values and specification
system color values
system icon values