body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f8f9fa;
}
.block-container {
    max-width: 500px;
    background: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
}
.block-container h1 {
    font-size: 1.8rem;
    color: #dc3545;
}
.block-container p {
    color: #6c757d;
    margin: 1rem 0;
}