.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.header {
  background-color: #4CAF50;
  color: white;
  text-align: center;
  padding: 20px;
  font-family: 'Arial', sans-serif;
}

.nav {
  display: flex;
  justify-content: center;
  background-color: #333;
}

.nav a {
  color: white;
  padding: 14px 20px;
  text-decoration: none;
  text-align: center;
}

.nav a:hover {
  background-color: #ddd;
  color: black;
}

.section {
  padding: 20px;
  font-family: 'Arial', sans-serif;
}

.footer {
  background-color: #333;
  color: white;
  text-align: center;
  padding: 10px;
  position: relative;
  bottom: 0;
  width: 100%;
}

@media (max-width: 600px) {
  .nav {
    flex-direction: column;
  }
  .section {
    padding: 10px;
  }
}