#program .desc table tr th,
#program .desc table tr td:nth-of-type(1){ 
  width: calc(100%/5);
}

#program .desc table tr th {
  text-align: center;
}

#susumekata .desc table tr th,
#houmonsaki .desc table tr th {
  width: calc(100%/3);
  text-align: center;
}