body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    background: #f4f4f4;
    padding: 20px;
    text-align: center;
}

header h1 {
    margin: 0;
}

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

nav ul li {
    display: inline-block;
    margin: 0 10px;
}

section {
    padding: 20px;
    text-align: center;
}

footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 10px;
}