I have made a fiddle for reference: http://jsfiddle.net/kLFn9/
The overflow:hidden in question is highlighted.
overflow:hidden
Basically, i\'m using :hover:af
:hover:af
There is no way using plain CSS to overflow a parent elements borders with a child, if it was set to overflow:hidden;. On possible CSS option is to use a sibling element to that one which has overflow:hidden; set and show that as popup.
overflow:hidden;