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

.canvas-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
}

#canvas {
    width: 100%;
    height: 100%;
    position: absolute;
    background-color: lightgrey;
    touch-action: none;
    background: transparent;
}