body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    padding: 20px;
}

.game {
    background: white;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
}

button {
    padding: 10px 15px;
    margin: 10px 0;
    cursor: pointer;
}