body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
}
.container {
    width: 50%;
    margin: auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
}
button {
    padding: 10px;
    border: none;
    background-color: #007bff;
    color: white;
    cursor: pointer;
}
button:hover {
    background-color: #0056b3;
}