ewer ul {
      list-style-type: none;
      padding: 0px;
      padding-left: 8px;
      margin: 0;
  }
  body {
      font-family: 'Roboto', sans-serif;
  }
  #help {
      position: absolute;
      top: 0;
      left: 0;
      margin: 1em;
  }
  #help-contents {
      display: inline-block;
      opacity: 0.3;
      background: #16a085;
      color: white;
      width: 1.1em;
      height: 1.1em;
      padding: 0.2em;
      text-align: center;
      border-radius: 50%;
  }
  #help-contents:hover {
      