.pet-shop {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.pet {
  font-size: 24px;
  cursor: pointer;
}

.cart {
  margin-top: 20px;
  font-size: 18px;
}

#cart-list {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 10px;
}

#message-box {
  padding: 10px 0;
  color: tomato;
}