Page Header Element

Hello,

How could I create a page header on my site's homepage with the logo at the center like this page: (please see screenshot in the private info field). The page header here has two following characteristics I wish to attain: Logo displayed in a considerable size at the center, with the menu navigation bar directly below.

Currently my site's homepage header is the default of the Arctic theme, with a small icon of the logo at the left and the menu bar at the right of the page (I've also attached a screenshot of this in the private info field too). I'd like to change this to be like the page header of the website I've shared in the private info field :)

Thanks!