body {
    background-color: #444;
    color: #000;
    font-family: 'Comic Sans MS', cursive, sans-serif;
    text-align: center;
}

header {
    background-color: #555;
    padding: 20px;
}

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

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

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

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

main {
    margin: 20px;
}

footer {
    background-color: #333;
    color: #fff;
    padding: 10px;
    bottom: 0;
    width: 100%;
}