page-item

bootstrap5.css

bootstrap5.css
.page-item:first-child .page-link {
  margin-left: 0;
  border-top-left-radius: 0.25rem;
  border-bottom-left-radius: 0.25rem;
}
bootstrap5.css
.page-item:last-child .page-link {
  border-top-right-radius: 0.25rem;
  border-bottom-right-radius: 0.25rem;
}
bootstrap5.css
.page-item.active .page-link {
  z-index: 1;
  color: #fff;
  background-color: #007bff;
  border-color: #007bff;
}
bootstrap5.css
.page-item.disabled .page-link {
  color: #6c757d;
  pointer-events: none;
  cursor: auto;
  background-color: #fff;
  border-color: #dee2e6;
}
bootstrap5.css
.pagination-lg .page-item:first-child .page-link {
  border-top-left-radius: 0.3rem;
  border-bottom-left-radius: 0.3rem;
}
bootstrap5.css
.pagination-lg .page-item:last-child .page-link {
  border-top-right-radius: 0.3rem;
  border-bottom-right-radius: 0.3rem;
}
bootstrap5.css
.pagination-sm .page-item:first-child .page-link {
  border-top-left-radius: 0.2rem;
  border-bottom-left-radius: 0.2rem;
}
bootstrap5.css
.pagination-sm .page-item:last-child .page-link {
  border-top-right-radius: 0.2rem;
  border-bottom-right-radius: 0.2rem;
}

html bootstrap5 Sample

ページネーション：pagination

  <nav>
    <ul class="pagination">
      <li class="page-item"><a class="page-link" href="#">前</a></li>
      <li class="page-item"><a class="page-link" href="#">1</a></li>
      <li class="page-item"><a class="page-link" href="#">2</a></li>
      <li class="page-item"><a class="page-link" href="#">3</a></li>
      <li class="page-item"><a class="page-link" href="#">次</a></li>
    </ul>
  </nav>

ページネーションの配置 中央寄せ：justify-content-center

  <nav>
    <ul class="pagination justify-content-center">
      <li class="page-item disabled"><a class="page-link" href="#" tabindex="-1">前</a></li>
      <li class="page-item"><a class="page-link" href="#">1</a></li>
      <li class="page-item"><a class="page-link" href="#">2</a></li>
      <li class="page-item"><a class="page-link" href="#">3</a></li>
      <li class="page-item"><a class="page-link" href="#">次</a></li>
    </ul>
  </nav>

ページネーションの配置 右寄せ：justify-content-end

  <nav>
    <ul class="pagination justify-content-end">
      <li class="page-item disabled"><a class="page-link" href="#" tabindex="-1">前</a> </li>
      <li class="page-item"><a class="page-link" href="#">1</a></li>
      <li class="page-item"><a class="page-link" href="#">2</a></li>
      <li class="page-item"><a class="page-link" href="#">3</a></li>
      <li class="page-item"><a class="page-link" href="#">次</a></li>
    </ul>
  </nav>

ページネーションにアイコンを使用する

  <nav>
    <ul class="pagination">
      <li class="page-item"><a class="page-link" href="#" aria-label="前へ"><span aria-hidden="true">«</span><span
            class="sr-only">前へ</span></a></li>
      <li class="page-item"><a class="page-link" href="#">1</a></li>
      <li class="page-item"><a class="page-link" href="#">2</a></li>
      <li class="page-item"><a class="page-link" href="#">3</a></li>
      <li class="page-item"><a class="page-link" href="#" aria-label="次へ"><span aria-hidden="true">»</span><span
            class="sr-only">次へ</span></a></li>
    </ul>
  </nav>

リンクの無効状態やアクティブ状態を指定する：disabled

  <nav>
    <ul class="pagination">
      <li class="page-item disabled"><a class="page-link" href="#" tabindex="-1">前</a></li>
      <li class="page-item"><a class="page-link" href="#">1</a></li>
      <li class="page-item active"><a class="page-link" href="#">2 <span class="sr-only">(現ページ)</span></a></li>
      <li class="page-item"><a class="page-link" href="#">3</a></li>
      <li class="page-item"><a class="page-link" href="#">次</a></li>
    </ul>
  </nav>

ページネーションのサイズ：pagination-lg

  <nav>
    <ul class="pagination pagination-lg">
      <li class="page-item disabled"><a class="page-link" href="#" tabindex="-1">前</a></li>
      <li class="page-item"><a class="page-link" href="#">1</a></li>
      <li class="page-item"><a class="page-link" href="#">2</a></li>
      <li class="page-item"><a class="page-link" href="#">3</a></li>
      <li class="page-item"><a class="page-link" href="#">次</a></li>
    </ul>
  </nav>

ページネーションのサイズ：pagination-sm

  <nav>
    <ul class="pagination pagination-sm">
      <li class="page-item disabled"><a class="page-link" href="#" tabindex="-1">次</a></li>
      <li class="page-item"><a class="page-link" href="#">1</a></li>
      <li class="page-item"><a class="page-link" href="#">2</a></li>
      <li class="page-item"><a class="page-link" href="#">3</a></li>
      <li class="page-item"><a class="page-link" href="#">前</a></li>
    </ul>
  </nav>