@media screen {
  body {
    background-color: black;
    color: white;
    margin-left: 5%;
    margin-right: 5%;
    font-family: sans-serif;
    font-size: medium;
  }
  
  a {
    color: yellow;  
  }
  
}

@media print {
  body {
    margin-left: 2%;
    margin-right: 2%;
    font-family: sans-serif;
    font-size: medium;
  }
}