Suppress Nav Bar

[dmhub25]

Hi, amazing project, thanks!
I'm displaying several URLs in browser tabs on a Pi 5. Is there a way to suppress the horizontal navigation at the top of the page? It auto hides after a few seconds but breaks up the page while it's showing and the display is not interactive so it can't be used.
Thanks again

[dmhub25]

?hideMenu=true in URL query string permanently hides navigation