I would like to display a customized tooltip for a header cell.
Unfortunately, the tooltip is always in the background due to the other layers (cells) of the handson table. I guess this is why a z-index of 9999 does not work.
Is there a way to implement this?
Here’s a jsfiddle of my attempt: http://jsfiddle.net/moyzv78a/9/. Change the css attribute “top” to 50% and a part of the tooltip will be displayed in the given cell.