body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header, footer {
    background-color: #00407a;
    color: white;
    padding: 20px 0;
    text-align: center;
}

nav {
    background-color: #0269d7;
    padding: 10px 0;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    text-align: center;
}

nav ul li {
    display: inline-block;
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

section {
    padding: 50px 20px;
    text-align: center;
}

section img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}

footer {
    margin-top: 50px;
}