body {
  font-family: "Times New Roman", Times, serif;
  line-height: 1.8;
  max-width: 700px;
  margin: 0 auto;
  padding: 2rem;
  background-color: #fff;
  color: #000;
}

h1 {
  font-size: 2rem;
  font-weight: normal;
  text-align: center;
  margin-bottom: 1rem;
}

nav {
  text-align: center;
  margin-bottom: 1rem;
}

nav a.tab-link {
  margin: 0 0.5rem;
  color: #000;
  text-decoration: none;
  cursor: pointer;
}

nav a.tab-link.active {
  text-decoration: underline;
}

nav a.tab-link:hover {
  text-decoration: underline;
}

hr {
  border: none;
  border-top: 1px solid #ddd;
  margin: 1.5rem 0;
}

ul {
  list-style-type: disc;
  padding-left: 1.5rem;
}

li {
  margin: 1rem 0;
}

a {
  color: #6b8fb5;
}

a:hover {
  color: #8bb0d6;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}