@media print {
    
html{
  font-size: 22px;
}
/* div.container {
    padding-right: .8in;
} */
.problem{
    page-break-inside: avoid;
}
.solution {
    color: #b30000 !important;
}
  .solution, .answer, nav{
      visibility: hidden;
  }
  /* .unit, .section{
      page-break-after: always;
  } */
  /* li {
    line-height: 1.6em;
    margin-left: .75em;
} */
}