display bottom nav bar

hello,

i have a page with several grids in it showing 3 items per grid. some has more items, some has only 1 or 2.
the bottom nav bar for pafination only appears if there are more than 3 items (which is supercool), but the empty space for the nav bar is always there.
is there a way to hide this empty space if it has no content to display?

here is my page: https://pneumaszov.org/2016/media/
on the bottom of the 2nd grid (“our texts”) it’s clearly visible.

thanks in advance,

luca