acity: 0;
        }
        #skeletonCanvas {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            width: 320px;
            height: 240px;
            pointer-events: none;
            z-index: 10;
        }
        #shadowCanvas {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            width: 240px;
            height: 180px;
            pointer-events: n