canvas {
    -webkit-user-drag: none;
    user-select: none;
    image-rendering: optimizeSpeed;
    image-rendering: optimizeContrast;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: -moz-crisp-edges;
    image-rendering: -o-crisp-edges;
    image-rendering: -webkit-crisp-edges;
    /* image-rendering: pixelated; */
    -ms-interpolation-mode: nearest-neighbor;
}