body {
    background-color: #f8f9fa;
    text-align: center;
    padding: 20px;
}

.container {
    max-width: 500px;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 4px 6px rgba(0,0,0,0.1);
}