1. From main page, Edit with Elementor >> Site Header:
Graphical user interface, application, website Description automatically generated

 

2. Navigate to where you want to change the font size, click the Pen icon:
Graphical user interface Description automatically generated with medium confidence

 

3. Under Style section, click the Pen icon at Typography raw:
Graphical user interface Description automatically generated

 

4. Move the pointer around to adjust the size as needed:
Graphical user interface Description automatically generated