The rich:tooltip component creates a small non-modal pop-up that can be used to display additional information for nearly anything on the page.

Major features:

- Tool-tip content may be pre-rendered on a page using client mode or loaded dynamically using separate Ajax requests via Ajax mode.
- In Ajax mode default content can be shown while the request is being executed
- Tool-tip's look-n-feel is fully customizable using both Richfaces skins and CSS style classes

There are various other options available such as delays, follow modes, and more that are in the example below: