@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }  
}

@-moz-keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

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

@-o-keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }  
}

@-ms-keyframes fadeIn {
  0% { opacity: 0; }  
  100% { opacity: 1; }  
}