How to keep nav items centered?

Hi All,

I want to make nav items stay centered. When I click the preview button and open the menu it’s fine, but as soon as I switch breakpoints it’s not centered anymore?

How can I fix this?

https://preview.webflow.com/preview/mimosa-template?utm_medium=preview_link&utm_source=designer&utm_content=mimosa-template&preview=01389f3e4dd300be46cde3832057d5bf

Thanks