body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background: #fdfdfd;
  color: #333;
}

header, footer {
  background: #222;
  color: #fff;
  padding: 1em;
  text-align: center;
}

nav a {
  color: #ffd700;
  margin: 0 10px;
  text-decoration: none;
}

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

main {
  padding: 2em;
}

h1, h2, h3 {
  color: #444;
}

img {
  margin-top: 10px;
  border: 2px solid #ddd;
  border-radius: 4px;
}