html, body {
  margin: 0;
  padding: 0;
  height:100%;
}

@page {
  size: A4;
  margin: 0;
}

@media print {
  html, body {
    width: 210mm;
    height: 297mm;
  }
  .print-page {
    /* margin: 1em; */
    width: 100%;
  }
  .print-page:not(:first-child) {
    page-break-before: always;
  }
  .print-page>img{
    margin: 0 auto;
    width: 100%;
    height: 100%;
  }
}