img.summary_png {
  max-width: min(100%, calc(var(--div-width) * 0.8));
  margin: 0pt;
}

li.etc-list {
  text-align: center;
}
li.etc-list a {
  text-decoration: none;
}
li.etc-list a:hover {
  text-decoration: underline;
}

.chapter-list li:first-child {
  border-top: 1px solid #eaeaea;
}

.chapter-list li {
  margin-bottom: 15pt;
  border-bottom: 1px solid #eaeaea;
}

.chapter-list li a {
  text-decoration: none;
}
ul.chapter-list {
  list-style: none;
}

div.chapter-list-title-wrapper {
  width: 270px;
  display: inline-block;
  vertical-align: top;
}

div.chapter-list-title-wrapper h2 {
  margin-top: 10px;
  margin-bottom: 10px;
  font-size: 1.2em;
  font-weight: bold;
}

div.chapter-list-title-wrapper:hover {
  text-decoration: underline;
}

div.chapter-list-image-wrapper {
  display: inline-block;
}
img.chapter-list-image {
  margin: 8px 5px 5px 10px;
  width: 200px;
}