Section containers (surprise) contain other sections. They can be fully templated though, so If you’d like to create tabs to switch between the sections in the container, you can.
Containers use the same template hierarchy as regular sections, with one exception: containered sections don’t have a view-type (fullscreen, half-half or )
the big difference for a container would be in the view. It’s a container, so it doesn’t have any information on how many columns it would contain. Here’s the same hierarchy for a container:
Here we can notice two things: the last template isn’t but .