src/styles/ThinkingDots.css

.thinking-dots {
  font-size: 24px;
  font-weight: bold;
  display: inline-block;
}

.thinking-dots span {
  animation: blink 1.2s infinite;
  margin: 0 2px;
}

.thinking-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.thinking-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes blink {
  0%,
  100% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
}