How to hide burger menu on mobile portrait?


I created a navbar that has a regular burger menu in tablet, mobile landscape and mobile portrait. I want to hide and disable the burger menu and the dropdown in mobile portrait only.

When in mobile portrait, I select the Menu Button, go to Display: hide. However, nothing happens.
When I select an icon inside the Menu Button and select display: hide, it hides the image. But it doesn’t solve the problem as the burger menu button is still clickable and activates the dropdown when clicking.

I also tried to assign Width and Height 0 px to the Menu Button and position: Absolute to get rid of it. Unfortunately, it is not an option.

Please help to get rid of the burger menu button and the dropdown in mobile portrait only.

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