弹出悬停在网页中

I am trying to create a sub block in a pop up manner when the user hovers over a link. I could not find a proper way to get a display like the image provided below. Also, I would like to make that sub block clickable and workable. I am trying this using bootstrap and jquery, but, I am fairly new in these areas and not sure what exactly I should be doing. Can some one please help me with this thing?I am trying to create a sub block in a pop up m