body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

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

nav {
    background-color: #444;
    color: #fff;
    text-align: center;
    padding: 0.5em;
}

nav a {
    color: #fff;
    text-decoration: none;
    padding: 1em;
    margin: 0 0.5em;
}

section {
    padding: 2em;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1em;
    position: absolute;
    bottom: 0;
    width: 100%;
}