body {
    overflow: hidden;
    margin: 0;
    background-color: white;
}
#canvas {
    display:block;
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    /*box-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px;*/
    box-shadow: rgba(0, 0, 0, 0.25) 0px 14px 28px, rgba(0, 0, 0, 0.22) 0px 10px 10px;
}