body {
    font-family: 'Arial', sans-serif;
    background-color: #f6f6f6;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 50px auto;
    background-color: #ffffff;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
}

.rule {
    margin-bottom: 30px;
}

.rule h2 {
    color: #444;
    border-bottom: 2px solid #ddd;
    padding-bottom: 10px;
}

.rule p {
    margin-top: 10px;
}

.footer {
    text-align: center;
    font-style: italic;
}