How to change font size, color, family & style in elementor page builder
Global Font Settings
The first place you will want to set your Font Size, Color etc, is under the Customizer / Theme Options Menu.
Go to: WP Dash / Appearance / Customize / Theme Options / Typography
Here you can set Headings, Body and Menu and include additional fonts as well. This is your Global typography settings.
Specific Font Settings inside a widget
Next if you wanted to change or alter a specific font in a widget, please see:
The Elementor Global Font Options are disabled by default in our theme because we use our own Global Font Settings mentioned above.