@-webkit-keyframes fadeIn {
    0%   {  opacity: 0 }
    100% {  opacity: 1 }
}
  
@keyframes fadeIn {
    0%   {  opacity: 0 }
    100% {  opacity: 1 }
}
  
@-webkit-keyframes fadeOut {
    0%   {  opacity: 1 }
    0% {  opacity: 0 }
}
  
@keyframes fadeOut {
    0%   {  opacity: 1 }
    0% {  opacity: 0 }
}