How can I show menu button at nav bar in mobile view only?

I have the sticky side menu in desktop and tablet view. I would like show a hamburger menu at nav bar in both mobile landscape and portrait mode. How could I do that?

I have watched the tutorial about the menu at nav bar. It shows the menu items at nav bar in desktop view and change to hamburger menu in tablet and mobile view. I can’t reference on it as I don’t show the items at nav bar in my design.

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