body {
    background-color: #0f0f0f;
    font-family: "Arial", sans-serif;
    color: #000;
    text-align: center;
    margin: 0;
    padding: 0;
}

.container {
    width: 800px;
    margin: 0 auto;
    background-color: #0b0e0f;
    border: 2px solid #000;
    padding: 20px;
    box-shadow: 5px 5px 0px #888;
}

header {
    background-color: #00a;
    color: #fff;
    padding: 10px 0;
}

header h1 {
    font-size: 2.5em;
    margin: 0;
}

nav {
    background-color: #444;
    padding: 10px 0;
    margin: 20px 0;
}

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

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

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

nav ul li a:hover {
    text-decoration: underline;
}

main h2 {
    font-size: 1.8em;
    color: #00f2d0;
    text-shadow: 1px 1px #999;
}

main p {
    font-size: 1.2em;
    line-height: 1.5em;
    color: #ffffff;
}

footer {
    background-color: #ddd;
    padding: 10px;
    border-top: 2px solid #000;
    margin-top: 20px;
}

marquee {
    margin: 20px 0;
    font-weight: bold;
    font-size: 1.5em;
    color: #0dead0;
}