html,body{background-color:#000;width:100%;height:100%;margin:0;padding:0;overflow:hidden}#loader{color:#fff;justify-content:center;align-items:center;height:100%;font-family:Arial;display:flex}#renderCanvas{cursor:grab;width:100%;height:100%;font-size:0;display:block}#ui{color:#fff;background-color:#000;width:135px;padding:5px;font-family:Arial;position:absolute;top:0;left:0}.modeRadio{margin:0}#sourceButton{cursor:pointer;background-color:#fff;border-radius:100%;justify-content:center;align-items:center;width:40px;height:40px;transition:all .2s;display:flex;position:absolute;bottom:10px;right:10px}#sourceButton:hover{background-color:gray}