Is there a way to have the url bar and tabs offscreen when I flip my phone for fullscreen

[AnimeThighs]

AnimeThighs last edited by AnimeThighs

For certain sites like funimation that don’t have a fullscreen for mobile (or at least one that doesn’t work as of posting this) I was wondering if it is possible or can be made possible for the url bar and tabs to fade or transition off screen after a few seconds and then comeback after scrolling or tapping the screen like the fast action nav button for example.