html,
body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    width: 100%;
    height: 100%;
    background-color: white;
}

canvas {
    margin: auto;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    box-shadow: rgb(3, 3, 3) 0px 20px 30px -10px;
    height: auto !important;
    width: auto !important;
    max-width: 100% !important;
    max-height: 90% !important;
}