Vellum is a responsive WordPress theme, Furthermore, you can easily customize the responsive behavior of your rows and columns. Your site will always look sharp on high pixel density devices.
With more than 650 Google fonts you can adjust your content as you wish. Set the fonts for header, menu, feature section, body and many more. Last but not least, Vellum allows you to fully customize the font-size for devices whether it is a tablet or a smartphones.