I use a template that is made for desktop, in which the zoom in feature is quite handy, but when i open in mobile (it works pretty well too), but the viewer display get a little clunky, the clickable SVG logo (a bit big on the x axis) goes to a second line on top and gets too close to TOC button.
This menu issue would solve itself by not having the zoom in/out icons, since this zooming can be made by the device's zoom. There is a way to tell the file to not show these icons when in mobile?