[Side Table] Hover Img for Text

[ERM]

Hii, there's a code I want to use on my site. It can be seen here [x]. When I hover over the image in the side table a new box appears with a title and a click-able link. It looks simple enough but I can't grasp the code. Any ideas? Please and thanks

[Tumbleweed]

In your other old thread, I suggested the pop-it menu.