The head box have not correct size

I've tried to install the template into clean joomla and I have a problem with the headbox size.
I created 4 head boxes, I put on position headbox-1, headbox-2, headbox-3, headbox-4 and on advanced option _box1, _box2, _box3, _box4 and when I tried to view my site, the boxes have no correct dimensions.

How can I put the boxes, to view like in your demo.

I have to reinstall all, and now everything it is ok.