animated_popover.css

@-webkit-keyframes fadeIn {
  from { opacity: 0;  }
   to { opacity: 1; }
}
@keyframes fadeIn {
  from { opacity: 0; }
 to { opacity: 1; }
}

.inmplayer-popover { 
  -webkit-animation-name: fadeIn;
  animation-name: fadeIn;
  -webkit-animation-delay: 0.4s;
  -moz-animation-delay: 0.4s;
  animation-delay: 0.4s;
  -webkit-animation-duration: 1s;
  animation-duration: 1s;
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
}