Adapt text size to viewport

Hi, I’d like the text size on my homepage to adapt to the viewport size. I have very little text on the homepage, and I would like it to look bigger on bigger screens and smaller on small screens, for the homepage to look balanced no matter what screen size it is viewed on . How can this be accomplished?

Also, I’d like the text to be vertically centered and the page not to be scrollable. I’d appreciate all help.