body {
  font-family: "Arial", serif;
  margin: 40px;
  line-height: 1.6;
}

.references {
  max-width: 700px;
  margin: 0 auto;
  padding: 0;
  list-style-type: none;
}

.references li {
  margin-bottom: 1em;
  padding: 0.5em 0;
  border-bottom: 1px solid #ddd;
}

.references li:last-child {
  border-bottom: none;
}

.references a {
  color: #0056b3;
  text-decoration: none;
}

.references a:hover {
  text-decoration: underline;
}

.references .author {
  font-weight: bold;
}

.references .year {
  color: #666;
}

.references .title {
  font-style: italic;
}