How Make And Add Stripe Ads In Blogger Like Navbar

Stript add,how to make this stript to add functionality in blogger like navbar is showed at top in bloggers.You must have seen these stripe adds in many bloggers nowadays,as i when started blogging used to see that stripe add in johnchow blog and he use to sell that add for hundreds of dollars.This add will be shown at top of every page and is fixed add as we scroll it remains at same place.Now