body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
}

#gameContainer {
    position: relative;
}

#gameCanvas {
    border: 1px solid #000;
}

#timer {
    position: absolute;
    top: 10px;
    left: 10px;
    font-family: Arial, sans-serif;
    font-size: 20px;
    color: white;
}