How to add an overlay to the Hero banner
If you want to add a darker or brighter overlay to the entire Hero Banner, you can do so by editing your template and adding these classes to the Hero Wrapper group:
For a dark overlay:
For a white overlay:
overlay-60 class sets the overlay opacity level and can be replaced with one of the following classes, (05 means it is almost completely transparent, 95 is almost opaque):
overlay-05 overlay-10 overlay-15 ... overlay-85 overlay-90 overlay-95
You can explore and learn more about the HubSpot tools and features in the official HubSpot Academy.