body {
    font-family: Arial, sans-serif;
}

.main-section {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

h1, h2 {
    color: #ffffff;
    text-align: center;
}

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

ul li {
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin: 5px 0;
}