<div class="rainy-day">
  <div class="raindrop"></div>
  <div class="raindrop"></div>
  <div class="raindrop"></div>
  <div class="raindrop"></div>
  <div class="raindrop"></div>
</div>
<div class="copyright">
  &copy; 2024 CodeCrafti | <a href="https://codecrafti.blogspot.com">codecrafti.blogspot.com</a>
</div>

.rainy-day {
  position: relative;
  width: 100%;
  height: 100vh;
  background-color: #6495ED;
  display: flex;
  justify-content: center;
  align-items: center;
}

.raindrop {
  position: absolute;
  width: 2px;
  height: 10px;
  background-color: #fff;
  animation: fall 3s ease-in-out infinite;
}

@keyframes fall {
  0% {
    top: 0;
  }
  100% {
    top: 100vh;
  }
}

const raindrops = document.querySelectorAll('.raindrop');

raindrops.forEach((raindrop, index) => {
  raindrop.style.animationDelay = `${index * 0.1}s`;
});