.navigation {
    display: none;
}

.book-summary ul.summary li a,
.book-summary ul.summary li span {
    padding: 1px 15px;
}

.book-summary ul.summary li ul {
    padding-left: 0.75em;
}

.book-summary ul.summary li > a {
    color: #008cff;
}

.book-summary ul.summary li.active>a {
    background-color: #ddd;
}


.markdown-section {
    line-height: 1.4;
}

.markdown-section h1,
.markdown-section h2,
.markdown-section h3,
.markdown-section h4,
.markdown-section h5,
.markdown-section h6 {
    margin-top: 1.1em;
    margin-bottom: 0.5em;
    padding: 2px 10px;
}

.markdown-section h1 {
    position: relative;
    font-size: 2em;
    border-bottom: 2px solid #3772db
}

.markdown-section h1:after {
    position: absolute;
    bottom: -1px;
    right: 0;
    content: "";
    width: 5%;
    height: 3px;
    background-color: #3772db;
}

.markdown-section h2 {
    font-size: 1.75em;
    border-bottom: 2px solid #3772db;
}

.markdown-section h3 {
    font-size: 1.2em;
    border-left: 4px solid #3772db;
    background-color: #dfefff;
}

.markdown-section h4 {
    font-size: 1.2em;
    background-color: #f0f0f0;
}

.book .book-summary .exc-trigger {
    position: absolute;
    left: 14px;
    top: 3px;
}

.intopic-toc {
    overflow: auto;
    height: 100vh;
}

.page-inner {
    max-width: 100%;
    width: 75%!important;
}

@media (max-width: 1240px) {
    nav.intopic-toc {
        height: inherit;
    }
    .page-inner {
        max-width: 100%;
        width: 90%!important;
    }
}

.table-area {
  overflow-x: auto;
  margin-bottom: 20px;
}
.table-area table {
  width: 100% !important;
  -webkit-overflow-scrolling: touch;
  white-space: nowrap !important;
  empty-cells: show;
}

/* 印刷用 */
@media print {
  @page {
    size: 190mm 277mm;
    margin: 0;
  }

  body {
    /*A4縦 210mm x 297mm*/
    width: 186mm;
    height: 270mm;
  }

  .page-inner {
    width: 100% !important;
  }
}