.message-scroller {
  width: 200px;
  height: 20px;
  overflow: hidden;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, transparent 0%, #000 15%, #000 85%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 15%, #000 85%, transparent 100%);
}

.message-scroller-track {
  display: flex;
  flex-direction: column;
  animation: message-stream 10s linear infinite;
  will-change: transform;
  backface-visibility: hidden;
}

.message-scroller-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 4px;
}

.message-card,
.message-card img {
  width: 200px;
  height: 20px;
  flex: 0 0 20px;
}

@keyframes message-stream {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(0, -50%, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .message-scroller-track {
    animation-duration: 30s;
  }
}