body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

.header {
    background-color: #1a1a1a;
    color: #fff;
    padding: 1rem;
    text-align: center;
}

.content {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1rem;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

footer {
    background-color: #1a1a1a;
    color: #fff;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
}