Box Shadow

  <div class="d-flex d-flex-wrap gap-4">
    <div class="box bs-none">bs-none</div>
    <div class="box bs-1">bs-1</div>
    <div class="box bs-2">bs-2</div>
    <div class="box bs-3">bs-3</div>
    <div class="box bs-4">bs-4</div>
    <div class="box bs-5">bs-5</div>
    <div class="box bs-6">bs-6</div>
    <div class="box bs-7">bs-7</div>
    <div class="box bs-8">bs-8</div>
  </div>