How to set the size of the printable area in css?

Question

css

All the best.
I can't set up the printer to print pages normally from chrome. I have a small printer (not a4), in my html document I print only the necessary, selected area using the @media print css attribute , which has a class with the display: none parameter; which I screwed to an area unnecessary for printing (an attempt to do the opposite did not work out). Everything was fine, everything was printed. But then Chrome was updated to version 54 and everything went wrong :( Now what I want to print has become very small and moved to the upper left corner (preview and in real life). Please tell me how can I grow the content for printing to the entire page (i.e. to entire paper page)