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

header {
  background-color: #333;
  color: #fff;
  padding: 20px;
  text-align: center;
}

h1 {
  font-size: 28px;
  letter-spacing: 2px;
  margin-bottom: 10px;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  text-align: center;
}

nav ul li {
  display: inline;
  margin-right: 10px;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
  padding: 5px 10px;
  border-radius: 5px;
  background-color: #666;
}

section {
  padding: 20px;
  background-color: #f5f5f5;
  margin-bottom: 20px;
  border: 1px solid #ddd;
  border-radius: 5px;
}

section h2 {
  color: #333;
  margin-top: 0;
}

section p {
  color: #666;
}

a {
  color: #337ab7;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}