i use icons for labels, but i saw this website: www.fontello.com where you can create font with icons.
www.fontello.com
But when i create font with icons it is bigger than a
This handy site shows you with CSS features are supported by which browser. In this case < IE9 can give you problems.
http://caniuse.com/#feat=fontface
Personally, I prefer to use CSS sprites for my UI elements to ensure consistency acroass browsers.