Horizontal menus?

Hi! I’ve been trying to figure this out for a while, but I have 0 experience with actual coding. Bassically, I have a main menu on my website that I made using the custom menu builder in the Widgets panel, and the default is having the links stacked on top of each other, is there any way to change this to a horizontal layout? On a side note, any way to remove the title? Sorry if I’m explaining this bad, like I said I’m super new to this!

The site is cheesyfantasycomic.com, in case anybody needs to see the menu!