/* Page setup works for all themes */
@page {
  /* A4 */
  /* size: 210mm 297mm;  */
  size: A4;
  margin: 10mm; /* approximately 0.4in */
}

html {
  margin: 0;
  padding: 0;
}
body {
  margin: 0;
  page-break-inside: auto;
  print-color-adjust: exact;
  -webkit-print-color-adjust: exact;

  /* simulate print page size */
  padding: 10mm;
  width: calc(210mm - 20mm);
  border: 1px solid #ccc;
  border-left: 0;
}
@media print {
  /* remove simulate print page size, let @page decide the size and margin */
  body {
    padding: 0;
    border: 0;
  }
}

.page-unit {
  page-break-inside: avoid;
  page-break-after: auto;
}