Changing fonts only for the site title?

Hi, you probably have answered this question, but I have searched and I haven't found the exact answer. I would like to change the font of the site title. and only the title. I have the .eot and.off files for the fonts (as well as the ttf file). The fonts are free (no license required). I have created and activated the Catch-Kathmandu-Pro-child theme. What should I do next? Many Thanks Riccardo