.slider {
      width: 600px;
      height: 400px;
      margin: 50px auto;
      position: relative;
      overflow: hidden;
      border-radius: 12px;
    }

    .slide {
      display: none;
      width: 100%;
      height: 100%;
    }

    .slide img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .slide.active {
      display: block;
    }

    button {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      background: rgba(0,0,0,0.5);
      color: white;
      border: none;
      padding: 12px 18px;
      cursor: pointer;
      font-size: 20px;
    }

    .prev {
      left: 10px;
    }

    .next {
      right: 10px;
    }