@media (max-width: 768px) {
  footer.sub-bg {
    padding: 42px 15px 50px 15px;
  }

  .form-container {
    width: 95%;
    padding: 20px;
  }
  .background-image {
    height: 200px;
  }

  .container-detail-product {
    display: block !important;
  }

  .h2-title {
    font-size: 25px;
  }
  .product-title {
    font-size: 14px;
  }
}