html,body{height:100%;margin:0;overflow:hidden}.viewer-container{width:100%;height:100%;position:relative;display:flex;justify-content:center;align-items:center}canvas{display:block;width:100%;height:100%}.floating-label{position:absolute;background:#00000080;color:#fff;padding:10px;border-radius:5px;font-size:14px;font-weight:700;pointer-events:none}