OT but anyone know how the author made that floating subscribe button happen? I inspected the code but I'm not a web dev and can't entirely tell how that was done.
AFAIK this is not a native Substack thing, and also AFAIK Substack doesn't allow CSS modification or injection of code.
AFAIK this is not a native Substack thing, and also AFAIK Substack doesn't allow CSS modification or injection of code.