body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 240px;
  height: 100%;
  background: #f4f4f4;
  border-right: 1px solid #ddd;
  padding: 20px;
  overflow-y: auto;
}

.sidebar-container h2 {
  margin-top: 0;
  font-size: 20px;
}

.sidebar-nav {
  list-style: none;
  padding-left: 0;
}

.sidebar-nav li {
  margin: 10px 0;
}

.sidebar-nav a {
  text-decoration: none;
  color: #0366d6;
}

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

.content {
  margin-left: 260px;
  padding: 20px;
  max-width: 900px;
}