<h2 class="radikalwp-txt-gradient">خلاقیت بی‌مرز<//h2>

.radikalwp-txt-gradient {
  margin: 0;
  font-size: 42px;
  font-weight: 900;
  text-align: center;
  background: linear-gradient(110deg, #6366f1, #ec4899, #f59e0b, #6366f1);
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: radikalwp-txt-gradient-flow 6s ease infinite;
}
@keyframes radikalwp-txt-gradient-flow {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}