body {
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #f0f0f0;
}

#gameCanvas {
    background-color: #000;
    border: 2px solid #333;
}

#lives {
    font-size: 24px;
    margin-top: 10px;
}

#gameOver {
    text-align: center;
    margin-top: 20px;
    color: red;
}