body {
    font-family: Arial, sans-serif;
    background-color: #f0f4f8;
    text-align: center;
    padding-top: 100px;
}
.container {
    background-color: white;
    margin: auto;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    max-width: 400px;
}
button {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
}
button:hover {
    background-color: #218838;
}