body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
    background-color: #f7f7f7;
}

#gameCanvas {
    border: 1px solid #000;
    background-color: #fff;
}

#score {
    font-size: 20px;
    margin-top: 10px;
    font-family: 'Arial', sans-serif;
}