body {
    font-family: 'Courier New', Courier, monospace;
    background-color: #f0f0f0;
    color: #333;
    margin: 0;
    padding: 0;
}

.container {
    width: 800px;
    margin: 0 auto;
    border: 2px solid #000;
    background-color: #fff;
}

header {
    background-color: #000080;
    color: #fff;
    text-align: center;
    padding: 10px 0;
}

marquee {
    background-color: #ff0000;
    color: #fff;
}

nav {
    background-color: #333;
    padding: 10px;
}

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

nav ul li {
    display: inline;
    margin-right: 10px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
}

main {
    padding: 20px;
}

.image-container {
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    max-width: 100%;
    max-height: 100%;
}

.image-container img {
    max-width: 100%;
    max-height: 300px; /* or any specific height you prefer */
    width: auto;
    height: auto;
}

footer {
    background-color: #000080;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    position: relative;
    bottom: 0;
    width: 100%;
}