.payment_details {
  background: #ffffff;
  border: 1px solid #cbcbcb;
  border-radius: 15px;
  max-width: 800px;
  padding: 2em;
}
.szamla_details {
  max-width: 600px;
}
.szamla_details input {
  padding: 5px;
  font-size: 14px;
}
.szamla_details .form-group {
  margin-bottom: 0;
}