/* key icon positioned inside the centered viewport (top-right corner of canvas) */
#keyCanvas {
    position: absolute;
    /* ensure it's anchored to the viewport's top-right */
    left: auto;
    right: 8px;
    top: 8px;
    width: 46px !important;
    height: 50px !important;
    z-index: 101;
    pointer-events: none;
    image-rendering: crisp-edges;
    image-rendering: -webkit-optimize-contrast;
    display: none;
}
#keyCanvas.active {
    display: block;
}