Nav bar came back / lightbox

Hello, i need help for some webflow project for a client lol

Okay so, i got a tab, with light box on it, i have a fixed nav bar with background color ( can’t change that for client reason )

When we click on my lighbow to see the picture, it’s opening, but the nav bar mask the button for leave the lighbox picture …

The only animation i see who can work is to put animation on click, but the only option for making it came back it’s " on 2cnd click " and it’s not what i need … i need like " when leave lightbox "

I export all my code, so if there is any html option i also take it, thanks guys and love u