body {
    background-color: black;
    color: lime;
    font-family: "Courier New", monospace;
    text-align: center;
}

header {
    background-color: #9D00FF;
    padding: 10px;
}

nav {
    background-color: #9D00FF;
    padding: 5px;
}

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

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

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

section {
    background-color: navy;
    padding: 20px;
    margin: 20px;
    border: 2px dotted white;
}

footer {
    background-color: #9D00FF;
    padding: 10px;
    font-size: 12px;
}