body {
  background-color: #f8f9fa;
  font-family: Arial, sans-serif;
}
.nav {
  background-color: #343a40;
  padding: 10px;
  border-radius: 5px;
}
.nav .nav-link {
  color: #ffffff;
  margin-right: 10px;
}
.nav .nav-link:hover {
  color: #ffc107;
}
.container {
  max-width: 960px;
}