Mobile problem with fullscreen

Using the free version, I have a mobile site which displays the flipbook well with the exception of the full screen arrow being displayed right in the middle of all the pages.

Is there any way to get rid of that fullscreen arrow or have it displayed somewhere else?

This is the shortcode I am using:

[flipbook same_height_as=”div#content” singlepage=”true” pdf=”my.pdf” theme=”light” header=”Opening Catalog…” title=”Catalog 2020″]

I also tried same_height_as=”div.sidebar” and same_height_as=”body which give the same problem