Hi Sansugoi,
The other way is to import the font face into your skin file...
(I'm using google fonts as an example below)
go to google fonts, then find the font you want to use.
Click on the "Quick use" icon then set the settings/sizes etc., for the font.
Go to step 3 "Add this code to your website"
Click the "@import" tab and copy the code
In you skin.css, at the top, paste the import code, this imports the fonts from google. By importing the font here, it should be available for the skin and containers.
Now in you css add the css from step 4...
body { font-family: 'Roboto', sans-serif; } for example.
Hope this helps,
Regards,
Geoff