@media print {
  body * {
    visibility: hidden;
  }
  
  #print-content, #print-content * {
    visibility: visible;
  }
  
  #print-content {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    padding: 40px;
    background-color: white;
  }
  
  .btn, .nav-tabs, footer {
    display: none !important;
  }
}