_sass/common/_print.scss

@media print {
  a {
    @include plain() {
      text-decoration: underline;
    }
    @include hover() {
      text-decoration: underline;
    }
    @include active() {
      text-decoration: underline;
    }
  }

  img,
  tr,
  pre,
  blockquote {
    page-break-inside: avoid;
  }
}