WordPress tooltip plugin lets you add tooltips to plain text or links within your posts and pages.
Demo: Hover over me to see a tooltip!
There is no configuration required. The plugin has a very easy to use GUI which simplifies the process of adding a tooltip.
Refer to the screenshots below:
Download Plugin
Credit: jQuery tipTip


Just installed this & its not working. On my about page I wanted to expand with tooltips, the types of plastics referenced. I input everything, pressed ‘add’ and the little box looks like my site’s homepage (which is not a wordpress page). It also doesn’t close.
Thanks for any help.