#snackbar {

  visibility: hidden;

  min-width: 200px;
  max-width: 250px;
  margin-left: 0;
  background-color: #30b666;
  color: #fff;
  text-align: center;
  border-radius: 2px;
  padding: 16px;
  margin-left: auto; margin-right: auto; 
  margin-top: 300px;
  position: fixed;
  z-index: 1;
  top: 100px;
  font-size: 13px;
}

#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: 100px; opacity: 1;}
}

@keyframes fadein {
  from {top: 0; opacity: 0;}
  to {top: 100px; opacity: 1;}
}

@-webkit-keyframes fadeout {
  from {top: 100px; opacity: 1;} 
  to {top: 0; opacity: 0;}
}

@keyframes fadeout {
  from {top: 100px; opacity: 1;}
  to {top: 0; opacity: 0;}
}