How do you increase Site Title Size in Catch Box

Greetings All, Currently I have a large title and it keeps coming up on 2 lines as opposed to just 1 EVEN THOUGH it could fit on 1 now that I have removed the Search bar... Here is an example of What I am talking of: e.g. 1 HAVE A ANNOYING PROBLEM AND LOOKING FOR ASSISTANCE Should really Read e.g. 2 HAVE A ANNOYING PROBLEM AND LOOKING FOR ASSISTANCE I was wondering how do I increase the Site Title Size in Catch box so that e.g. 2 is the format I get as opposed to the first one? Hear from you all soon