I didn't say that he should NOT follow your advice, did I?
Besides, getting rid of that CSS folder doesn't solve everything. I did it here with the downloaded project file. Then, just for the sake of it, I tried making the header section a bit smaller by setting a limit on the logo image, making the text smaller for narrow widths, etc, and all of a sudden my tool panes were gone again. I haven't seen any other obvious culprits, but there surely must be some more issues buried in that project.
Ha en riktig god dag!
This site was made before we were able to create components through the app:
Component sharing for RFF, RBB, RSD and SD: https://eikweb.com/sharing/
My work in progress right now:
Components for the same as above + HTML Editor: https://mock-up.coffeecup.com