.standout {
  animation-duration:6s;
  animation-name:standout;
  animation-timing-function:linear;
  animation-delay:0s;
  animation-iteration-count:5;
  animation-direction:normal;
  animation-fill-mode:both;
  animation-play-state:running;
}

@keyframes standout {
  0% { transform:scale(1.0); }
  10% { transform:scale(0.9); }
  20% { transform:scale(1.0); }
  30% { transform:scale(0.9); }
  40% { transform:scale(1.0); }
  100% { transform:scale(1.0); }
}