.product-detail__quantity-selector
  .quantity-selector__rules
  span
  + span::before {
  content: " + ";
}
.product-detail__quantity-selector{
  align-items: flex-start;
}
.product-detail__quantity-selector theme-input-number{
  border:1px solid rgba(77, 63, 50, 0.40);
  border-radius: 50px;
}