body {
  font-family: Arial, sans-serif;
  background-color: rgba(173, 216, 230, 0.2);
  margin: 0;
  padding: 0;
  color: #333;
}
header {
  background-color: #0a3d62;
  color: white;
  padding: 1rem;
  text-align: center;
}
nav ul {
  display: flex;
  justify-content: center;
  list-style: none;
  padding: 0;
}
nav ul li {
  margin: 0 1rem;
}
nav ul li a {
  color: white;
  text-decoration: none;
}
main {
  padding: 2rem;
  text-align: center;
}
.main-image {
  max-width: 90%;
  height: auto;
  border-radius: 8px;
  margin-top: 1rem;
}
footer {
  background-color: #0a3d62;
  color: white;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}