.glow {
  font-size: 15px;
  color: #fff;

  -webkit-animation: glow 1s ease-in-out infinite alternate;
  -moz-animation: glow 1s ease-in-out infinite alternate;
  animation: glow 1s ease-in-out infinite alternate;
}

@-webkit-keyframes glow {
  from {
    text-shadow: 0 0 1px #fff, 0 0 2px #fff, 0 0 3px #e60073, 0 0 4px #e60073, 0 0 5px #e60073, 0 0 6px #e60073, 0 0 7px #f20a0a;
  }
  to {
    text-shadow: 0 0 2px #fff, 0 0 3px #ff4da6, 0 0 4px #ff4da6, 0 0 5px #ff4da6, 0 0 6px #ff4da6, 0 0 7px #ff4da6, 0 0 8px #f50000;
  }
}