/* style.css */

body {
  font-family: Arial, sans-serif;
  margin: 0;
}

nav {
  background-color: #222;
  padding: 10px;
  display: flex;
  justify-content: center;
}

nav a {
  color: white;
  text-decoration: none;
  margin: 0 15px;
  padding: 10px 20px;
  background-color: #444;
  border-radius: 5px;
  transition: background 0.3s;
}

nav a:hover {
  background-color: #666;
}

iframe {
  display: block;
  margin: 20px auto;
  border: none;
}