@media print {
  body * {
    visibility: hidden;
  }
  #section-to-print, #section-to-print * {
    visibility: visible;
  }
  #section-to-print {
    position: absolute;
    width: 100%;
    left: 0;
    top: 0;
  }
  #mainScreen {
    position: absolute;
    width: 100%;
    left: 0;
    top: 0;
  }
  #print, .printer {
    visibility: hidden;
  }
  .progress{
   border:1px solid gray;
   }
  .progress-bar{
   border-right:1px solid gray;
  }
  .progress{background-color:#999999;}
}