#snackbar {
    visibility: hidden; 
    min-width: 150px;
    margin-left: -125px;
    background-color: orange; 
    color: #fff; 
    text-align: center; 
    border-radius: 2px;
    padding: 16px; 
    position: fixed; 
    z-index: 1; 
    left: 50%;
    bottom: 30px; 
  }
  
  #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 {bottom: 0; opacity: 0;}
    to {bottom: 30px; opacity: 1;}
  }
  
  @keyframes fadein {
    from {bottom: 0; opacity: 0;}
    to {bottom: 30px; opacity: 1;}
  }
  
  @-webkit-keyframes fadeout {
    from {bottom: 30px; opacity: 1;}
    to {bottom: 0; opacity: 0;}
  }
  
  @keyframes fadeout {
    from {bottom: 30px; opacity: 1;}
    to {bottom: 0; opacity: 0;}
  }