.anim {
  animation-name: Appearance;
  animation-duration: 1s;
  animation-timing-function: cubic-bezier(.1,-.6,.2,0);
}

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

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

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

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