Easy way to have a carriage return in the site title?

Really enjoying Hemingway as a theme, and appreciate the wealth of knowledge in the questions and answers here.

A new question – is there any easy way to have a carriage return in the site title that appears in the black box in the middle of the header? I’m trying to have two lines of text both with the same formatting as the site title (rather than one line with the site title formatting and one line with the tagline formatting). I know that the number of lines in the site title adjusts depending on the size of the browser window; I’m wondering if there is a way to force a carriage return or otherwise have two separate lines?

Thanks so much for the information.