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

header {
    background-color: #0077cc;
    color: white;
    text-align: center;
    padding: 1rem 0;
}

header h1 {
    margin: 0;
}

.introduction {
    padding: 2rem;
    text-align: center;
}

footer {
    background-color: #222;
    color: white;
    text-align: center;
    padding: 1rem 0;
    position: absolute;
    bottom: 0;
    width: 100%;
}