#snackbar {
  visibility: hidden;
  min-width: 250px;
  margin-left: -125px;
  text-align: center;
  border-radius: 2px;
  padding: 16px;
  position: fixed;
  z-index: 1;
  right: 30px;
  top: 30px;
}

#snackbar.snack {
  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 {
right: 0;
opacity: 0;
}

to {
  right: 30px;
  opacity: 1;
}
}
 @keyframes 
fadein {  from {
right: 0;
opacity: 0;
}

to {
  right: 30px;
  opacity: 1;
}
}
 @-webkit-keyframes 
fadeout {  from {
right: 30px;
opacity: 1;
}

to {
  right: 0;
  opacity: 0;
}
}
 @keyframes 
fadeout {  from {
right: 30px;
opacity: 1;
}

to {
  right: 0;
  opacity: 0;
}
}