Altering/Changing Font Size in Annotum Header?

Dear All,

Through a stubborn web search, I finally found code that allows for the Tagline to be visible at http://www.mikeperazzetti.com. However, the font seems too small and crowded and the Title seems much too large.

Where can I go to fix this and how do I fix it with the correct code? At this point, I have no idea where I should go or what code will work.

All help will be greatly appreciated. Thanks.

Mike