Wouter Postma

This plugin uses the <a href="https://chrisbracco.com/a-simple-css-tooltip/" rel="nofollow ugc">Simple CSS tooltips</a> by Chris Bracco and a shortcode to create simple tooltips. You can define a link, tooltip location and more in the shortcode.
<ul>
<li><a href="https://profiles.wordpress.org/wouterpostmanl#content-plugins" rel="nofollow ugc">View my other plugins</a></li>
</ul>
To add a tooltip to your website, please install and activate the plugin. 
Then use the shortcode to add a tooltip:
<pre><code>[tooltip text="The tooltip"]The text[/tooltip]
</code></pre>
The above shortcode will add a simple tooltip on top of “The text”. 
If you want to include a link or change the location of the tooltip, this is possible by using the following attributes in your shortcode:
<pre><code>[tooltip text="The tooltip" location="right" href="https://example.com/" rel="nofollow"]The text[/tooltip]
</code></pre>
The location can either be top, right, left or bottom. If you don’t enter a location, the default location (top) will be used. 
As you can see it is also possible to add rel=”nofollow” to your link. 
If you don’t enter a link, the text will link to “#”.

Easy WP Tooltips

Add tooltips to your content easily using a simple shortcode!

techotronic

Adds tinytips tooltips to links on your site. Comes with 8 different themes. 
The tinytip can be added to a link using the WordPress visual editor.
The plugin can be automated to add the functionality for all links.
Tinytips tooltips are added for all links that have a “title” attribute.
See the <a href="http://www.techotronic.de/plugins/jquery-tinytips/" rel="nofollow ugc">plugin page</a> for demo pages.
For more information visit the <a href="https://wordpress.org/extend/plugins/jquery-tinytips/faq/" rel="ugc">FAQ</a>. 
If you have questions or problems, feel free to write an email to blog [at] techotronic.de or write an entry at <a href="https://wordpress.org/tags/jquery-tinytips?forum_id=10" rel="ugc">the jQuery Tinytips WordPress.org forum</a>
Localization
<ul>
<li>English (en_EN) by <a href="http://www.techotronic.de/" rel="nofollow ugc">Arne Franken</a></li>
<li>German (de_DE) by <a href="http://www.techotronic.de/" rel="nofollow ugc">Arne Franken</a></li>
</ul>
Includes <a href="http://plugins.jquery.com/project/tinytips" rel="nofollow ugc">Tinytips</a> 1.1 jQuery plugin from <a href="http://www.mikemerritt.me/" rel="nofollow ugc">Mike Merritt</a>. 
Tinytips is licensed as <a href="http://www.mikemerritt.me/plugins/tinyTips/license.txt" rel="nofollow ugc">free of charge for anyone</a>. 
jQuery Colorbox uses the jQuery library version 1.4.2 bundled with WordPress 3.0.

jQuery Tinytips

Adds tinytips tooltips to links on your site. Comes with different themes.

Easy WP Tooltips vs jQuery Tinytips