.letter-list ul, .letter-list ol {
    list-style: lower-alpha;
  }
  
  li.appendix
  {
    display: none !important;
  }
  
  
  #TOC ul,
  #TOC li,
  #TOC span,
  #TOC a {
    margin: 0;
    padding: 0;
    position: relative;
  }
  #TOC {
    line-height: 1;
    border-radius: 5px 5px 0 0;
    background: #141414;
    background: linear-gradient(to bottom, #333333 0%, #141414 100%);
    border-bottom: 2px solid #0fa1e0;
    width: auto;
  }
  #TOC:after,
  #TOC ul:after {
    content: '';
    display: block;
    clear: both;
  }
  #TOC a {
    background: #141414;
    background: linear-gradient(to bottom, #333333 0%, #141414 100%);
    color: #ffffff;
    display: block;
    padding: 19px 20px;
    text-decoration: none;
    text-shadow: none;
  }
  #TOC ul {
    list-style: none;
  }
  #TOC > ul > li {
    display: inline-block;
    float: left;
    margin: 0;
  }
  #TOC > ul > li > a {
    color: #ffffff;
  }
  #TOC > ul > li:hover:after {
    content: '';
    display: block;
    width: 0;
    height: 0;
    position: absolute;
    left: 50%;
    bottom: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-bottom: 10px solid #0fa1e0;
    margin-left: -10px;
  }
  #TOC > ul > li:first-child > a {
    border-radius: 5px 0 0 0;
  }
  #TOC.align-right > ul > li:first-child > a,
  #TOC.align-center > ul > li:first-child > a {
    border-radius: 0;
  }
  #TOC.align-right > ul > li:last-child > a {
    border-radius: 0 5px 0 0;
  }
  #TOC > ul > li.active > a,
  #TOC > ul > li:hover > a {
    color: #ffffff;
    box-shadow: inset 0 0 3px #000000;
    background: #070707;
    background: linear-gradient(to bottom, #262626 0%, #070707 100%);
  }
  #TOC .has-sub {
    z-index: 1;
  }
  #TOC .has-sub:hover > ul {
    display: block;
  }
  #TOC .has-sub ul {
    display: none;
    position: absolute;
    width: 200px;
    top: 100%;
    left: 0;
  }
  #TOC .has-sub ul li a {
    background: #0fa1e0;
    border-bottom: 1px dotted #31b7f1;
    filter: none;
    display: block;
    line-height: 120%;
    padding: 10px;
    color: #ffffff;
  }
  #TOC .has-sub ul li:hover a {
    background: #0c7fb0;
  }
  #TOC ul ul li:hover > a {
    color: #ffffff;
  }
  #TOC .has-sub .has-sub:hover > ul {
    display: block;
  }
  #TOC .has-sub .has-sub ul {
    display: none;
    position: absolute;
    left: 100%;
    top: 0;
  }
  #TOC .has-sub .has-sub ul li a {
    background: #0c7fb0;
    border-bottom: 1px dotted #31b7f1;
  }
  #TOC .has-sub .has-sub ul li a:hover {
    background: #0a6d98;
  }
  #TOC ul ul li.last > a,
  #TOC ul ul li:last-child > a,
  #TOC ul ul ul li.last > a,
  #TOC ul ul ul li:last-child > a,
  #TOC .has-sub ul li:last-child > a,
  #TOC .has-sub ul li.last > a {
    border-bottom: 0;
  }
  #TOC ul {
    font-size: 1.2rem;
  }