Why when resizing the MS Word page, one page is split into 3?

Question

Word

Hello. Tell me please.

There is a document


. You need to set it to a width of 14.5 cm and a height of 12 cm, you should get a "postcard", while the text size must be preserved.


But when applying these parameters, this result is obtained


Question: what needs to be done to set the page to a fixed width and height, keep the text size and fit all this on one page?