@font-face {
  font-family: "OCR-B";
  src: url('fonts/OCR-B.otf') format('opentype');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'Libre Barcode 39';
  src: url('fonts/LibreBarcode39-Regular.ttf') format('TrueType');
  font-weight: normal;
  font-style: normal;
}