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

header {
    background-color: #007bff;
    color: white;
    padding: 20px;
}

h1 {
    margin: 0;
}

section {
    padding: 20px;
    max-width: 800px;
    margin: auto;
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

ul, ol {
    text-align: left;
    display: inline-block;
}

footer {
    background-color: #222;
    color: white;
    padding: 10px;
    margin-top: 20px;
}