.placeholder-wrapper {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
}
.placeholder-sweep {
  width:100%;
  max-width: 1200px;
  height: 447px;
  position: relative;
  overflow: hidden;
  background-color: #5b2fca47;
  
}

.placeholder-sweep::after {
  content: '';
  position: absolute;
  top: 0;
  left: -150%;
  height: 100%;
  width: 150%;
  background: linear-gradient(
    120deg,
    transparent 0%,
    rgba(255, 255, 255, 0.3) 50%,
    transparent 100%
  );
  animation: sweep 1.8s infinite;
}

@keyframes sweep {
  0% {
    left: -150%;
  }
  100% {
    left: 100%;
  }
}