.cnt-reserve .back-btn {
  text-align: center;
  margin-bottom: 30px;
}
.cnt-reserve .back-btn input {
  border: none;
  width: 300px;
  padding-top: 15px;
  padding-bottom: 15px;
  background: #d97676;
  color: #fff;
  text-align: center;
  font-size: 20px;
}