<div class="splide" aria-label="スライドの番号を表示させる">
  <div class="splide__track">
    <ul class="splide__list">
      <li class="splide__slide">
        <img src="https://pengi-n.co.jp/blog/wp-content/uploads/2024/01/splide-01.jpg" alt="">
      </li>
      <li class="splide__slide">
        <img src="https://pengi-n.co.jp/blog/wp-content/uploads/2024/01/splide-02.jpg" alt="">
      </li>
      <li class="splide__slide">
        <img src="https://pengi-n.co.jp/blog/wp-content/uploads/2024/01/splide-03.jpg" alt="">
      </li>
      <li class="splide__slide">
        <img src="https://pengi-n.co.jp/blog/wp-content/uploads/2024/01/splide-04.jpg" alt="">
      </li>
      <li class="splide__slide">
        <img src="https://pengi-n.co.jp/blog/wp-content/uploads/2024/01/splide-05.jpg" alt="">
      </li>
      <li class="splide__slide">
        <img src="https://pengi-n.co.jp/blog/wp-content/uploads/2024/01/splide-06.jpg" alt="">
      </li>
      <li class="splide__slide">
        <img src="https://pengi-n.co.jp/blog/wp-content/uploads/2024/01/splide-07.jpg" alt="">
      </li>
    </ul>
  </div>
</div>

html,
body {
  margin: 0;
  padding: 0;
}

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


.pagination {
  counter-reset: pagination-num;
}

.splide__pagination__page:before {
  counter-increment: pagination-num;
  content: counter( pagination-num );
}

.button-pagination {
  width: 1.5rem;
  height: 1.5rem;
  margin: 0.4rem;
  content: "";
  background: #212121;
  border: none;
  color: #ffffff;
  cursor: pointer;
  outline: none;
  position: relative;
}
.button-pagination.is-active {
  background: #afeeee;
  color: #212121;
}

.button-pagination:before {
  font-size: 1rem;
}

/*  CODEPEN表示調整用  */
@media screen and (min-width: 600px) { 
.splide__track {
  height:300px;
}
}

const options = {
  cover: true,
  heightRatio: 0.5,
  classes: {
    pagination: "splide__pagination pagination",
    page: "splide__pagination__page button-pagination"
  }
};

const splide = new Splide(".splide", options);
splide.mount();