body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f5f5f5;
    padding: 20px;
}

.container {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    display: inline-block;
}

button {
    padding: 10px 20px;
    background-color: #28a745;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #218838;
}