Bottom bar of browsers hiding content

How can I hide or remove the bottom bar of the browsers(the open new page button, the settings button) when the overflow of the page is hidden and cannot scroll down (like an app). The bar only hides when scrolling down, and because of the overflow:hidden it does not go down and interferes with the web content. the website is live maybe is useful glume.netlify.com (the web is made in react)

This is how it looks normally, hiding content

This is zooming out and you can see how much content hides