web/viewer.css [1360:1422]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
}

@page {
  margin: 0;
}

#printContainer {
  display: none;
}

@media print {
  body {
    background: rgb(0 0 0 / 0) none;
  }

  body[data-pdfjsprinting] #outerContainer {
    display: none;
  }

  body[data-pdfjsprinting] #printContainer {
    display: block;
  }

  #printContainer {
    height: 100%;
  }

  /* wrapper around (scaled) print canvas elements */
  #printContainer > .printedPage {
    page-break-after: always;
    page-break-inside: avoid;

    /* The wrapper always cover the whole page. */
    height: 100%;
    width: 100%;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  #printContainer > .xfaPrintedPage .xfaPage {
    position: absolute;
  }

  #printContainer > .xfaPrintedPage {
    page-break-after: always;
    page-break-inside: avoid;
    width: 100%;
    height: 100%;
    position: relative;
  }

  #printContainer > .printedPage :is(canvas, img) {
    /* The intrinsic canvas / image size will make sure that we fit the page. */
    max-width: 100%;
    max-height: 100%;

    direction: ltr;
    display: block;
  }
}
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -