Imprimindo itens com quebra de página. Print items with page break.

print_page_break.css

.break {
  page-break-before: always !important;
}

print_page_break.js

function printDiv(divName) {
  // {{ request.path }} is Jinja.
  var printWindow = window.open('{{ request.path }}' + 'print/')
  printWindow.addEventListener('load', function() {
    printWindow.print();
    printWindow.close();
  }, true)
}