#snackbar {
      visibility: hidden;   
      background-color: #4caf50;
      color: #fff;
      text-align: center;
      border-radius: 2px;
      padding: 16px;
      position: fixed;
      z-index: 1;
      right: .5%;
      top: 60px;
      font-size: 17px;
    }

    #snackbar.show {
      visibility: visible;
      -webkit-animation: fadein 0.5s, fadeout 0.5s 2.5s;
      animation: fadein 0.5s, fadeout 0.5s 2.5s;
    }

    @-webkit-keyframes fadein {
      from {top: 0; opacity: 0;}
      to {top: 60px; opacity: 1;}
    }

    @keyframes fadein {
      from {top: 0; opacity: 0;}
      to {top: 60px; opacity: 1;}
    }

    @-webkit-keyframes fadeout {
      from {top: 60px; opacity: 1;}
      to {top: 0; opacity: 0;}
    }

    @keyframes fadeout {
      from {top: 60px; opacity: 1;}
      to {top: 0; opacity: 0;}
    }