@media (prefers-color-scheme: dark) {
    body {
      background-color: #444;
      color: #e4e4e4;
    }
    a {
      color: #e39777;
    }
    img {
      filter: grayscale(30%);
    }
    .jumbotron{
      color: #444;
      /*background-color:none !im
      portant;*/
      }
      /*
    button{
       color: #444;
      }
      */
  }