We'll create fresh WordPress site with Abbreviation button for TinyMCE installed. You have 20 minutes to test the plugin after that site we'll be deleted.
This plugin should be used to supply abbreviation support in the TinyMCE visual editor. Once activated, it provides an “ABR” button which allows editor to indicate the meaning of each abbreviation used in Pages, Posts or any custom post types used in your WordPress installation. The markup is fully compatible with accessibility rules like Web Content Accessibility Guidelines (WCAG). It uses <abbr>…</abbr>
HTML markup instead of the deprecated <acronym>…</acronym>
HTML markup.
Available languages
You can add your own language pack: contribute here! Contributors will be linked back here.
Search Plugins > Abbreviation button for tinymce and add your translations. Many strings are commented to help you to understand context.
Credits
Jean-Baptiste Audras, WordPress projects manager at Whodunit and WordPress developer. @audrasjb on Twitter or Github.