*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:#03050f;overflow:hidden;font-family:'Courier New',monospace}
body{display:flex;flex-direction:column}
#cw{flex:1;position:relative;min-height:0;overflow:hidden}
#c3d{display:block;width:100%;height:100%;touch-action:none;position:absolute;top:0;left:0}
#c2d{display:none;width:100%;height:100%;touch-action:none;position:absolute;top:0;left:0}