body {
  background-color: #e6e6fa;
  font-family: Arial, sans-serif;
  text-align: center;
  color: #333;
  margin: 0;
  padding: 20px;
}
header {
  background-color: #4a90e2;
  padding: 10px;
}
nav a {
  margin: 0 15px;
  text-decoration: none;
  color: white;
}
nav a:hover {
  color: #ff6f61;
}
main {
  margin: 20px 0;
}
section {
  margin: 20px 0;
}
footer {
  background-color: #4a90e2;
  color: white;
  padding: 10px;
  position: fixed;
  bottom: 0;
  width: 100%;
}