Hello, I find this strange question to explain, but I'll try my best not to take negative feedback haha, come on.
Status: I have a website, in it I present other website templates, I would like to apply a navbar, with my logo, some buttons that go back to the website and 3 icons, mobile, tablet and desktop, so that it changes the screen resolution and be easy to test responsive version.
If you do not understand, before you reject it, please comment here and I'll try to explain it better.
In short: I need to create a fixed navbar at the top of the page to view templates responsively
There is an example that could show ThemeForest , that navbar they use in the demo of a theme.