I am using this tutorial to make some tooltips: http://shailkpatel.blogspot.com/2007/10/css-tooltip-on-mouse-hover.html In the code there is something called z-index. I don't know what it is, but when I take it out the code still works. I don't really want to leave it in there if its not doing anything, but I may be missing something. Does anyone know? thanks
The z index is just the order of the elements on your page. For example, suppose you have some text that you want floating on top of an image, you wouldn't be able to do this with standard positioning because they don't support overlapping. When you set the z index, you are specifying whether elements will overlap or not. The lower the z index, the lower it will be on the hierarchy. The higher the z index, the higher it will be on the hierarchy. Make sure you set a position value for the element, or it won't work