Adding unique nav bar to a specific page

Hi,

I’d like to put a different nav bar together for use on one of my site’s pages. The page will be used in an iframe on facebook. I’m looking for a similar set-up to these guys: https://www.inboundnow.tv/offers/hubs/

My theme is portfolium, my site is https://www.freshcopywriting.com

any help is greatly appreciated.

thanks,

john