body {
  font-family: Arial, sans-serif;
  padding: 2rem;
  background-color: #121212;
  color: #ffffff;
}
h1 {
  color: #00ffcc;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  margin: 1rem 0;
  background: #1e1e1e;
  padding: 1rem;
  border-radius: 8px;
}
a {
  color: #00ccff;
  text-decoration: none;
  font-weight: bold;
}
a:hover {
  text-decoration: underline;
}
iframe {
  margin-top: 0.5rem;
  width: 100%;
  height: 200px;
  border: none;
  border-radius: 4px;
}