Access and move leaflet widget for other layers

I hope this is not a too basic question. My issue is that I'm really enjoying working with Shiny although not having too much experience with web-relating things...
Anyways, I'm loving it and here is my issue:
I tried to create a leaflet map with the option for different base layers. Now my citation, that I have as a div in my r-code is below this widget. It ends up looking like this:

image

Now my question would be if there is any chance to move that widget instead of the citation and how would I do it?
Thanks a lot in advance:)