This is a very simple plugin that allows you to associate a tooltip to any link in the block editor. Open the link options, click on the pencil icon to edit it, then make sure that the Advanced panel is open, and find the new input box for the tooltip. You will see the tooltip when you hover with the mouse the link in the frontend.
Main features: – new ‘tooltip’ input box in the CMS editor ‘edit link’, under ‘Advanced’ tab. – showing this new field as a simple CSS-only tooltip in the frontend – CSS rules use some variables to easily modify the aspect of the tooltip.