SOURCE

<div class="carousel basic">
    <div class="group">
         <div class="card">A</div>
  <div class="card">B</div>
  <div class="card">C</div>
    </div>
  <div aria-hidden class="group">
    <div class="card">A</div>
    <div class="card">B</div>
    <div class="card">C</div>
  </div>
</div>

  .carousel {
    margin: 0 auto;
    padding: 20px 0;
    max-width: 700px;
    overflow: hidden;
    display: flex;
  
   
  }
  .carousel:hover .group {
animation-play-state: paused;
  }
   .group {
      flex: 0 0 100%;
    }

   .group {
    display: flex;
    gap: 20px;
    /* Add padding to the right to create a gap between the last and first card. */
    padding-right: 20px;
     will-change: transform; /* We should be nice to the browser - let it know what we're going to animate. */
    animation: scrolling 10s linear infinite;
  }


  @keyframes scrolling {
    0% {
      transform: translateX(0);
    }
    100% {
      transform: translateX(-100%);
    }
  }

  .card {
    width: 100%;
    color: white;
    border-radius: 24px;
    box-shadow: rgba(0, 0, 0, 10%) 5px 5px 20px 0;
    padding: 20px;
    font-size: xx-large;
    justify-content: center;
    align-items: center;
    min-height: 200px;

    &:nth-child(1) {
      background: #7958ff;
    }

    &:nth-child(2) {
      background: #5d34f2;
    }

    &:nth-child(3) {
      background: #4300da;
    }
  }