.mb10 {
  margin-bottom: 10px;
}
.mb15 {
  margin-bottom: 15px;
}
.mb20 {
  margin-bottom: 20px;
}
.mb1em {
  margin-bottom: 1em;
}
#contents {
  color: #000;
}
#contents p {
  font-family: "游ゴシック体", YuGothic, "游ゴシック", "Yu Gothic", sans-serif;
  -webkit-font-smoothing: antialiased;
  font-size: 18px;
  line-height: 180%;
}
#contents p.annotation {
  font-size: 12px;
}
#contents strong,
#contents a {
  font-family: "游ゴシック体", YuGothic, "游ゴシック", "Yu Gothic", sans-serif;
}

#contents h3 {
  font-family:
    "游ゴシック体", YuGothic, "游ゴシック", "Yu Gothic", sans-serif !important;
  -webkit-font-smoothing: antialiased;
  font-size: 25px;
  font-weight: bold;
  line-height: 180%;
  background-image: none;
  background-color: #fff;
  width: 100%;
  box-sizing: border-box;
  color: #000;
  clear: both;
  margin-top: 20px;
  margin-right: 0;
  margin-bottom: 20px;
  margin-left: 0;
  padding: 2px 0 2px 15px;
  border-left: solid 5px #0c6be0;
}

#contents h4 {
  font-family: "游ゴシック体", YuGothic, "游ゴシック", "Yu Gothic", sans-serif;
  -webkit-font-smoothing: antialiased;
  font-size: 20px;
  font-weight: bold;
  line-height: 180%;
}

.numberlist {
  margin-left: 2em;
}

.numberlist li {
  font-family:
    "游ゴシック体", YuGothic, "游ゴシック", "Yu Gothic", sans-serif !important;
  list-style-type: decimal;
  font-size: 18px;
  margin-bottom: 0.5em;
  line-height: 150%;
}
.flex-img {
  display: flex;
  justify-content: space-between;
}
.flex-img div {
  width: 49%;
}
.flex-img div img {
  width: 100%;
  display: block;
  margin-bottom: 5px;
}
.note {
  font-family:
    "游ゴシック体", YuGothic, "游ゴシック", "Yu Gothic", sans-serif !important;
  font-size: 16px;
  line-height: 170%;
  border: solid 1px #e4e4e4;
  background: #fafafa;
  border-radius: 10px;
  padding: 15px;
  box-sizing: border-box;
}
.page,
.page a {
  font-family:
    "游ゴシック体", YuGothic, "游ゴシック", "Yu Gothic", sans-serif !important;
  font-size: 16px;
}