body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

header, footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1em 0;
}

nav {
    display: flex;
    justify-content: center;
    background-color: #444;
    padding: 1em 0;
}

nav a {
    color: #fff;
    margin: 0 1em;
    text-decoration: none;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

.content {
    padding: 2em;
    text-align: center;
}

.content img {
    width: 400px;
    height: 400px;
    margin-bottom: 1em;
}

footer .footer-info {
    margin-top: 1em;
}

@media (max-width: 600px) {
    .container {
        width: 95%;
    }

    .content img {
        width: 100%;
        height: auto;
    }

    nav {
        flex-direction: column;
    }
}