<div class="radikalwp-loader-progress" role="progressbar" aria-label="در حال پردازش"><//div>

.radikalwp-loader-progress {
  position: relative;
  width: 220px;
  max-width: 100%;
  height: 8px;
  background: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
}
.radikalwp-loader-progress::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 40%;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #6366f1, #8b5cf6);
  animation: radikalwp-loader-progress-run 1.6s cubic-bezier(.45, 0, .55, 1) infinite;
}
@keyframes radikalwp-loader-progress-run {
  0%   { left: -40%; }
  100% { left: 100%; }
}