body {
    font-family: Arial, sans-serif;
    background-color: #f0f2f5;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}
.container {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    width: 100%;
    text-align: center;
}
button {
    padding: 10px 20px;
    margin: 10px;
    border: none;
    border-radius: 4px;
    color: #ffffff;
    background-color: #00b31b;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}
button:hover {
    background-color: #05fa63;
}