body {
    background-color: #f0f0f0;
    font-family: Arial, sans-serif;
    text-align: center;
    margin-top: 50px;
}
h1 {
    color: blue;
}
button {
    padding: 10px 20px;
    font-size: 16px;
    background-color: green;
    color: white;
    border: none;
    cursor: pointer;
}
button:hover {
    background-color: darkgreen;
}