change menu items layout to horizontal

How can I change the layout of the top menu so the items are on a horizontal plane instead of a vertical list?

Can I change the links to buttons?

I also need to make the logo show at 300 px by 300 px

thanks

May I know which links you want to change to buttons? as it seems that you're using a menu module on topbar right there.

For the logo, to show it at 300 x 300 will make it really big:

@media (min-width: 576px) {
  .navbar-brand.logo-control img.logo-img {max-height: inherit !important;}
}