.message {
    position: relative;
    bottom: 800px;
    width: 800px;
    height: 800px;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    background: rgba(0,0,0,0.5);
}

.message span {
    display: block;
    text-align: center;
    color: rgb(255,255,255);
    font-weight: bold;
    font-size: 50px;
}

#canvas {
    width: 800px;
    height: 800px;
    image-rendering: pixelated
}