@charset "utf-8";
html {
  scroll-behavior: smooth;
}
#contentsarea h2 {
  margin: 100px 0 20px !important;
  padding: 35px 35px 30px !important;
  font-size: x-large !important;
  background: linear-gradient(to right, #fff 15%, rgba(160,160,165,0.25));
}
#contents h3 {
  margin: 30px 0 16px;
  font-size: 17px;
  padding: 16px 10px 13px 12px;
  background: linear-gradient(to left, #fff 0%, rgba(100,175,225,0.55));
}
#contents table ul {
  padding-left: 0;
  list-style-type: none;
}
#contents table li span {
  font-size: 15px;
}

.theme {
  text-align: center;
  word-break: keep-all;
}
.main {
  margin: 36px auto 10px;
  font-size: 40px;
  line-height: 34px;
}
.sub {
  font-size: 22px;
  line-height: 26px;
}
.mt50 {
  margin-top: 50px;
}
.mb30 {
  margin-bottom: 30px;
}
.mb99 {
  margin-bottom: 100px;
}

@media screen and (max-width: 470px) {
  .main {
    margin-bottom: 10px;
    font-size: 30px;
    line-height: 34px;
  }
  .sub {
    font-size: 18px;
    line-height: 22px;
  }
}