I want a column box that starts partway down page 1 (because it's preceded
by a title block), but I want it to start at the top of page 2, page 3 and
The current behavior of Prawn is to start at the same vertical point on all
pages, as in this tiny runnable
I could of course use multiple column boxes, but then I would need to do a
lot of calculation to figure out just what should go on the first page and
what should go on the rest.