First get the library from the github repo. Then in your HTML include the library CSS:
<link rel="stylesheet" href="hint.css">
Now, all you need to do is give your element any position class and tooltip text using the
Hello Sir, <span class="hint--bottom" aria-label="Thank you!">hover over me.</span>
Use it with other available modifiers in various combinations. Available modifiers:
Hint.css is a free and open-source library, however, if you are using the library for business, commercial sites, themes, projects, and applications, the Commercial license is the appropriate license. With this option, your source code is kept proprietary. Read more about UpLabs commercial licensing.
Once purchased, you’ll receive a commercial license PDF and you are all set to use Hint.css in your commercial applications.