template/src/styles/styles-print.css

@media print {

  @page {
    size: 8in 11in;
    @bottom-right {
      content: counter(page) " of " counter(pages);
    }
  }

  html {
    /* no general margins -- CSS Grid takes care of those */
  }

  p, code {
    page-break-inside: avoid;
  }

  h2, h3 {
    page-break-after: avoid;
  }

  d-header {
    visibility: hidden;
  }

  d-footer {
    display: none!important;
  }

}