close button element is being obscured because it's hitting the edge of the containing div that has a class of "slider-image

http://www.jorgemonedero.com/blog/in...hard-nicoll-2/
the button is there - top right below the social icons. (you may have to refresh to view it for some reason)
i wish to move that button (close-btn / return to index) to the bottom of the page so that is sits alongside artist name - publication, photo count.
when i have tried changing the css the close button element is being obscured because it's hitting the edge of the containing div that has a class of "slider-image