body {
  font-family: sans-serif;
  background-color: #f5f5f5;
  color: #222;
  padding: 2rem;
  text-align: center;
}

.year-list ul {
  list-style: none;
  padding: 0;
}

.year-list li {
  margin: 1rem 0;
}

.year-list a {
  text-decoration: none;
  font-size: 1.2rem;
  background: #8573FB;
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  display: inline-block;
}