.checkout-custom-upsale,
.custom-upsale {
  border: 2px solid #f1563c;
  color: #f1563c;
  padding: 10px;
  text-align: center;
  font-weight: 700;
  border-radius: 5px;
  width: auto;
}
.checkout-cart-index .custom-upsale {
  display: block;
}
.checkout_index_index .custom-upsale {
  display: none;
}