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

#game-container {
    position: relative;
}

#game-canvas {
    border: 1px solid #000;
    background-color: #e1f5fe;
}

#speed-board {
    position: absolute;
    top: 10px;
    left: 10px;
    color: white;
    font-size: 20px;
}