It adds two buttons, 'Bigger' and 'Smaller,' onto your page, empowering users to control the font size according to their preferences.

Demo
https://quickandeasywebbuilder.com/support/font-size.html
More information
https://www.quickandeasywebbuilder.com/extensions/index.php?file_id=228
Requirement:
Quick 'n Easy Web Builder 11
You can download the new extension through the Extension Manager (Menu->Tools->Extension Manager->Online Gallery).
or here
http://extensions.quickandeasywebbuilder.com/
Please read the included PDF documentation for instructions, license information, etc.