.upsell-box {
  background-color: #fefefe;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  border-radius: 10px;
  margin-top: 40px;
  padding: 20px;
  text-align: center;
}
.upsell-box h3 {
  font-size: 18px;
  font-weight: 600;
}