#main-content {
  width: 900px;
  text-align: center;
}

#lead {
  margin-top: var(--main-object-margin-height);
  //padding: 25px 50px;
  padding: 25px 40px;
  line-height: 1.6em;
  border: solid 1px var(--site-main-color);
  text-align: left;
}

#lead > h1 {
  margin-bottom: 0.5em;
  text-align: center;
  color: var(--site-main-color);
  font-weight: normal;
  font-size: 1.3em;
  line-height: 1.4em;
}

#lead > p {
  margin-top: 0.6em;
  font-size: 0.95em;
  line-height: 1.6em;
}

#main-content > section {
  margin-top: var(--main-object-margin-height);
  line-height: 1.6em;
  //text-align: left;
}

#main-content > section > h1 {
  margin: 0.2em auto 0 auto;
  font-family: "Zen Kaku Gothic Antique", sans-serif;
  font-size: 1.5em;
  color: var(--site-main-color);
  line-height: 1.3em;
  letter-spacing: 2px;
  font-weight: normal;
}

#main-content > section > h1 small {
  font-size: 0.7em;
}

#main-content > section > section {
  margin-top: 30px;
}

#main-content > section .gaiyou-link {
  margin-top: 10px;
  text-align: right;
}

#main-content > section .gaiyou-link a {
  display: inline-block;
  vertical-align: top;
  padding: 0.4em 1em 0.3em 1em;
  font-size: 0.75em;
  line-height: 1em;
  color: var(--site-white-color);
  text-decoration: none;
  background-color: var(--site-main-color);
  border: solid 1px var(--site-main-color);
  border-radius: 4px;
}

#main-content > section .gaiyou-link a:hover {
  background-color: var(--site-white-color);
  color: var(--site-main-color);
}

#main-content > section .repo {
  margin-top: 0.5em;
  text-align: left;
}

#main-content > section p {
  margin-top: 0.5em;
  text-align: left;
}

#main-content > section p:first-of-type {
  margin-top: 0;
}

#main-content > section .repo ul {
  margin-top: 0.6em;
  margin-left: 2em;
}

#main-content > section .repo ul li {
  margin-top: 0.5em;
}


#main-content > section .photo {
  margin-top: 30px;
}

#main-content > section .yokonarabi {
  margin-top: 30px;
  text-align: center;
}

#main-content > section .yokonarabi > .photo {
  display: inline-block;
  vertical-align: top;
  margin: 0 10px;
  width: 420px;
}

.photo .lecturer {
  margin-top: 0.5em;
}

.photo .lecturer .name {
  font-size: 1.1em;
  line-height: 1em;
}

.photo .lecturer .org {
  margin-top: 0.5em;
  font-size: 0.85em;
  line-height: 1.4em;
}

#tutorial > section > h1 {
  width: 120px;
  margin: 0.2em auto 0 auto;
  padding: 0.3em 0;
  font-family: "Zen Kaku Gothic Antique", sans-serif;
  font-size: 1.1em;
  color: var(--site-main-color);
  line-height: 1em;
  font-weight: normal;
  border: solid 1px var(--site-main-color);
  border-radius: 4px;
}

#kenkyu-jirei > section > h1 {
  display: inline-block;
  vertical-align: top;
  margin: 0.2em auto 0 auto;
  padding: 0.4em 1.5em 0.4em 1em;
  font-family: "Zen Kaku Gothic Antique", sans-serif;
  font-size: 1.1em;
  color: var(--site-main-color);
  line-height: 1em;
  font-weight: normal;
  border: solid 1px var(--site-main-color);
  border-radius: 4px;
}

#saigoni-matome {
  margin: 20px auto 0 auto;
  width: 500px;
  font-size: 0.9em;
  text-align: left;
}

#saigoni-matome img {
  float: right;
}

#archive {
  margin-top: 50px;
  padding: 1em 0;
  border: solid 1px var(--site-main-color);
}

#archive > h1 {
  margin-bottom: 0.8em;
  color: var(--site-main-color);
  text-align: center;
  font-weight: normal;
}

#archive > ul {
  width: 100%;
  margin-top: 1em;
  list-style-type: none;
  text-align: left;
}

#archive > ul li {
  display: inline-block;
  width: calc(50% - 25px);
  margin: 0.3em 0 0.3em 20px;
  font-size: 0.9em;
  text-align: left;
}

#archive > ul li > a {
  display: inline-block;
  margin-left: 0.5em;
  padding: 0.3em 0.6em;
  text-align: center;
  border: solid 1px var(--site-black-color);
  font-size: 17px;
  text-decoration: none;
}

#archive > ul li > a:hover {
  color: var(--site-main-color);
  border: solid 1px var(--site-main-color);
}