如何在按钮卡底部放置向下滚动箭头

<div class="button-card">
  <button>按钮</button>
  <i class="fas fa-chevron-down"></i>
</div>

.button-card {
  width: 200px;
  height: 100px;
  background-color: #f2f2f2;
  position: relative;
}

.button-card button {
  width: 100%;
  height: 100%;
  background-color: transparent;
  border: none;
  outline: none;
  cursor: pointer;
}

.button-card i {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  color: #000;
  font-size: 20px;
}