@import url("https://fonts.googleapis.com/css2?family=Bad+Script&display=swap");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Bad Script", cursive;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-color: #111;
}

h2 {
  display: flex;
  font-size: 15vw;
}
h2 span {
  animation: animate 3s linear infinite;
  animation-delay: calc(0.1s * var(--i));
}

@keyframes animate {
  0% {
    color: #fff;
    filter: blur(2px) hue-rotate(0deg);
    -webkit-filter: blur(2px) hue-rotate(0deg);
    text-shadow: 0 0 10px #00b3ff, 0 0 20px #00b3ff, 0 0 40px #00b3ff,
      0 0 80px #00b3ff, 0 0 120px #00b3ff, 0 0 200px #00b3ff, 0 0 300px #00b3ff,
      0 0 400px #00b3ff;
  }
  30%,
  70% {
    color: #fff;
    filter: blur(2px) hue-rotate(360deg);
    -webkit-filter: blur(2px) hue-rotate(360deg);
    text-shadow: 0 0 10px #00b3ff, 0 0 20px #00b3ff, 0 0 40px #00b3ff,
      0 0 80px #00b3ff, 0 0 120px #00b3ff, 0 0 200px #00b3ff;
  }
  100% {
    color: transparent;
    box-shadow: none;
    filter: blur(2px) hue-rotate(0deg);
  }
}