table.formtable tr.attend.graduation_date .form-group.third {
  margin-left: 5%;
}

@media (max-width: 768px) {
  .mw_wp_form table.formtable tr.attend.graduation_date .seinen {
    display: block;
  }
  table.formtable tr.attend.graduation_date .form-group.third {
    margin-top: 4%;
  }
  #footer .sp-footer .bg-parts:before {
    background-color: #313640 !important;
  }
}

@media (max-width: 480px) {
  .mw_wp_form table.formtable tr.attend.graduation_date .seinen .flex {
    display: flex;
  }
}