I have a question regarding this subject. I managed somehow to do exactly this, to put a text block on top of a fullscreen carousel, without any css. I tried to do it again on another project, but couldn´t manage to repeat the process.
I just drag and dropped text block and resized it a bit, and it seems to work fine.
Will this be a problem for me in the future? Or can I live like this? :)
I can just duplicate the project to have the same solution all around.