@media screen{

  .printClass{ display:none;}
  .projectionClass{display:none;}
  .screenClass{ display:block ;}
  .print-and-screen{display:block;}
  .all{display:block;}


  p.li{
    font-size:16px;
    color:black;
  }


}

@media print
{
  .printClass{ display:block ;}
  .projectionClass{display:none;}
  .screenClass{ display:none;}
  .print-and-screen{display:block;}
  .all{display:block;}

  h2{
    page-break-before:always;
    font-size:36px;
  }

  p{
    font-size:16px;
    color.r:red;
  }

   p.footer{
    position: fixed;
    bottom: 0px;
    left: 0px;
    font-size:8px;
  }
}