Portfolio page - mobile view problem

I have done the project of web responsive page. So, I thought of looking at it through my mobile. But when I see it in landscape mode my navigation bar seems to overflow. Why does it happen ?
Here is my project.

Hi Samuel,

This happens because of the vh height setting in the navbar.

To be honest, I don’t think you even need to set a height for the navbar, as it will cover the content unless you specify otherwise. This also goes for height under media query.

Hope that helps.