I’m trying to implement custom code to control the width of the containers as well as font size, however, I am confused about whether or not the custom code will affect each unique container class. If I insert a container and change the settings, it automatically becomes “container 1” and so on sequentially. So, then if I put custom code into the site for containers, will it affect every unique container class, “container 1,2,3…and so on”?
It would be hard to tell without seeing your custom code. Each container you add, and then edit, will developers a unique class. However, you can reuse the same class between multiple containers.
If your custom code is class specific, then it would only apply to containers with that class.
Really need to see your read only site or code to help more though. 