main .railway__heading {
  font-size: 21px;
  font-weight: 700;
  width: 80%;
  margin: 1em auto;
}
main .area_btnbox .btn_return:nth-child(2) {
  padding-right: 50px;
}

@media screen and (max-width: 767px) {
  main .railway__heading {
    font-size: 16px;
    width: 100%;
  }
  main .railway__item:first-child {
    border-top: solid 1px #999;
  }
  main .searchPref {
    padding-top: 10px;
  }
  main .area_btnbox .btn_return:nth-child(2) {
    padding-right: 0;
  }
}