*{box-sizing:border-box}html,body{background:#080b0e;width:100%;height:100%;margin:0;overflow:hidden}body{font-family:Arial,Helvetica,sans-serif}.game-shell{width:100%;height:100dvh;min-height:0}.game-frame{background:#080b0e;border:0;width:100%;height:100%;display:block}