Center Text Vertically within HTML Code Block

Hi all!

I'm wondering if someone could help me figure out how to center the type vertically within the animated radial gradient on the home page of this site. The code I referenced for this allows me to add a top margin but when the browser size is adjusted the type isn't responsive and centered. Thank you!

-Kyle

@tuanphan you're always fantastic help, if you have any ideas I'd be forever grateful!

Can you share link to home page?

@tuanphan apologies, here: https://sunfish-turbot-cxel.squarespace.com/

Thank you!

@tuanphan lifesaver as always, thank you!!!