body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: #222;
}

header {
  background: #222;
  color: white;
  padding: 20px;
  text-align: center;
}

h1, h2 {
  margin: 0;
}

section {
  padding: 20px;
  text-align: center;
}

a.btn {
  display: inline-block;
  padding: 12px 20px;
  margin: 10px;
  background: #0077cc;
  color: white;
  text-decoration: none;
  border-radius: 5px;
}

a.btn:hover {
  background: #005fa3;
}
.navbar {
  background: #222;
  padding: 15px;
  text-align: center;
}

.navbar a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
}

.navbar a:hover {
  text-decoration: underline;
}