body {
  background:#000;
}
.text-animation {
  position:absolute;
  top:50%;
  left:40%;
  transform:translate(-40%,-50%);
}
.text-animation h1 {
  color:#111;
  font-family:"Montserrat",sans-serif;
  font-size:40px;
  letter-spacing:10px;
  text-transform:uppercase;
}
.text-animation h1 span {
  animation:glow 4.5s ease-in-out infinite;
}
@keyframes glow {
  0%,100%{
    color:#eee;
    text-shadow:0 0 10px #00acee, 0 0 50px #00acee, 0 0 80px #00acee;
  }
  10%,90%{
    color:#111;
    text-shadow:none;
  }
}