So I just installed a new theme on my Tumblr page and I tried to add my drop-down hover box, It works, I can see the boxes while my page is loading but when it's done, It disappears..

I'm okay with html and css but I don't know how to fix this, can someone explain what I should do?

this is my page, the boxes should be on the right <http://daisyscars.tumblr.com/>