I am very new to HubSpot and would like to ask if anyone knows here how to add classes on a body? Like for example, there would be a different display when a template is loaded and when the template is scrolled. My exact scenario is, I have this header where it has no background color when it is loaded, and background color will become black when it is scrolled.
This can be added in the header part in a Custom HTML file with ‘Edit Options’ → Inline Styling --> “display:none;” or you can make a js file and link it here using script source.
When you give display:none for the Custom HTML with script, it removes unncessary spacing.