.book .book-summary ul.summary li.active>a, .book .book-summary ul.summary li a:hover {
  color: #008cff;
  background: transparent;
  text-decoration: none !important;
}

h1 {
  color: #2674BA;
}
h2 {
  color: #0099CC;
}
h3 {
  color: #108ee9;
}
h4 {
  color: #662D91;
}
h5 {
  color: #444444;
}

.gitbook-link {
  display: none !important;
}

.summary-title-span {
  position: relative !important;
  padding: 0 !important;
}
.rule-title:after,
.sample-title:after {
  font-size: 12px;
  padding: 0 3px;
  border-radius: 3px;
  color: #fff;
}

.rule-title:after{
  content: 'rule';
  background-color: #108ee9;
}

.sample-title:after {
  content: 'sample';
  background-color: #00a854;
}

.page-inner {
  max-width: 1000px !important;
}