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

.book .markdown-section hr {
  height: 1px;
}

.page-inner {
  max-width: 880px;
}

.book-summary {
  width: 220px;
}

@media (min-width: 600px) {
  .book.with-summary .book-body {
    left: 220px;
  }
}

@media (max-width: 600px) {
  .book.with-summary .book-body {
    left: 220px;
    -webkit-transform: none;
    -moz-transform: none;
    -ms-transform: none;
    -o-transform: none;
    transform: none;
  }
}

.book .book-body .body-inner, .book .book-body {
  overflow-y: scroll;
}

.book .book-body .body-inner::-webkit-scrollbar, .book .book-body::-webkit-scrollbar {
  display: none;
}

.book .book-summary ul.summary li a, .book .book-summary ul.summary li span {
  padding: 8px 15px 6px 25px;
}

.exc-trigger.fa {
  font-size: 12px;
  color: #666;
}

.video-js {
  width: 100%;
  height: 100%;
}