body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
  color: #333;
}
header {
  background: #007acc;
  color: white;
  padding: 20px;
  text-align: center;
}
footer {
  background: #003d66;
  color: white;
  padding: 10px;
  text-align: center;
}
a {
  color: #007acc;
  text-decoration: none;
}