body {
    background-image: url('background.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    font-family: Arial, sans-serif;
    color: white;
    text-align: center;
    margin: 0;
    padding: 0;
}

header {
    background: rgba(0, 0, 0, 0.7);
    padding: 20px;
}

nav ul {
    list-style: none;
    padding: 0;
}

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

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
}

main {
    background: rgba(0, 0, 0, 0.6);
    padding: 20px;
    margin: 20px auto;
    width: 80%;
    border-radius: 10px;
}

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

footer {
    margin-top: 20px;
    padding: 10px;
    background: rgba(0, 0, 0, 0.7);
}