body {
    background: #ffffff;
    color: #000000;
    margin: 0 auto;
    max-width: 900px;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    padding: 2rem;
  }
  a {
    color: #1a73e8;
    text-decoration: none;
  }
  a:hover {
    text-decoration: underline;
  }
  h2, h3, h4 {
    margin-bottom: 0.5rem;
    color: #4b4b4b;
  }
  h4 {
    margin-top: 0.5rem;
  }
  p {
    margin-bottom: 1rem;
  }
  .header-image {
    float: right;
    margin-left: 1rem;
    margin-bottom: 1rem;
  }
  .clear {
    clear: both;
  }
  .paper {
    margin-bottom: 1.5rem;
  }
  .coauthors {
    display: block;
    text-indent: 1em;
    vertical-align: top;
  }
  .comments {
    display: block;
    text-indent: 1em;
    vertical-align: top;
    font-style: italic;
  }
  .title {
    display: block;
    text-indent: 0.5em;
    vertical-align: center;
    font-weight: bold;
  }


ul {
    list-style-type: none;
    padding-left: 20px;
  }
  li {
    <!-- margin-bottom: 1rem; -->
    <!-- margin-top: 1rem; -->
    position: relative;
    padding-left: 20px;
    border-top: dotted 0.05em;
  }
  <!-- li::before { -->
  <!--   content: '*'; -->
  <!--   position: absolute; -->
  <!--   left: 0; -->
  <!--   color: #4b4b4b; -->
  <!-- } -->