#contents h2 {
  text-align: center;
  font-size: 1.2em;
  margin: 0 0 0.5em;
}

#contents .table {
  max-width: 960px;
  margin: 0 auto 50px;
  overflow: hidden;
}

#contents .ol-section {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 50px;
}

#contents .ol-section .ol-box {
  display: flex;
  flex-direction: row;
}

#contents .ol-section .ol-box .ol-th,
#contents .ol-section .ol-box .ol-td {
  font-size: 16px;
  font-weight: normal;
  border-top: 1px solid #999;
  /* border-bottom: 1px solid #999; */
  padding: 0.5em 1em;
  text-align: justify;
}

#contents .ol-section .ol-box .ol-th.btm-bd,
#contents .ol-section .ol-box .ol-td.btm-bd {
  border-bottom: 1px solid #999;
}

#contents .ol-section .ol-box .ol-th {
  border-right: 1px solid #999;
  width: 25%;
}

#contents .ol-section .ol-box .ol-td {
  /* border-left: 1px solid #999; */
  width: 75%;
  position: relative;
}

#contents .rivi-box {
  margin: 0 auto 2em;
  padding: 1em;
  max-width: 960px;
  border: 1px #000 solid;
  font-size: 16px;
}

#contents .yokoku {
  font-size: 14px;
  margin: 0 0 50px;
}

dl.update {
  float: right;
}

dl.update dt {
  float: left;
  clear: left;
}

dl.update dd {
  float: left;
}

.tab {
  max-width: 800px;
  margin: 0 auto 50px;
  overflow: hidden;
}

.tab li {
  width: 45%;
  float: left;
  text-align: center;
}

.tab li:last-child {
  float: right;
}

.tab li a {
  display: block;
  border: 1px solid #56a498;
  color: #56a498;
  text-decoration: none;
  padding: 10px;
}

.tab li.active a {
  background: #56a498;
  color: #fff;
}

@media screen and (max-width: 767px) {
  #contents .table {
    width: 95%;
    margin: 0 auto 25px;
  }
  #contents .ol-section {
    margin: 0 0 25px;
  }
  #contents .ol-section .ol-box {
    border: 1px #002E4F solid;
    flex-direction: column;
  }
  #contents .ol-section .ol-box .ol-th,
  #contents .ol-section .ol-box .ol-td {
    border: none;
    font-size: 4vw;
  }
  #contents .ol-section .ol-box .ol-th.btm-bd,
  #contents .ol-section .ol-box .ol-td.btm-bd {
    border: none;
  }
  #contents .ol-section .ol-box .ol-th {
    width: 100%;
    background: #002E4F;
    color: #FFF;
    text-align: center;
  }
  #contents .ol-section .ol-box .ol-td {
    width: 100%;
  }
  #contents .rivi-box {
    margin: 0 auto 1em;
    font-size: 10px;
  }
  #contents .yokoku {
    font-size: 10px;
    margin: 0 0 25px;
  }
  dl.update {
    font-size: 11px;
  }
}