html {
    scroll-behavior: smooth;
}

.card {
    transition: transform 20s ease-in-out;
  }

  @keyframes scroll {
    0% {
      transform: translateX(0);
    }
    100% {
      transform: translateX(-50%);
    }
  }
  
  .card.infinite-scroll {
    animation: scroll 40s linear infinite;
  }