body {
  background-color: #000;
  text-align: center;
}
@keyframes text-color-gradient {
  0%{background-position:0% 50%}
  50%{background-position:100% 50%}
  100%{background-position:0% 50%}
}
.gradient-color-text {
  background-size: 400% 400%;
  background-image: linear-gradient(to right, #ff0000, #ff8000, #fff200, #51ff00, #00d0ff, #9000ff,#ff008c);
  -webkit-background-clip: text;
  animation: text-color-gradient 10s ease infinite;
  color: transparent;
  font-size: 48px;
}