.circle,.square{color:#fff;width:50px;height:50px;display:flex}.circle,.moon{border-radius:50%}body{position:relative;margin:0}.circle,.moon,.square{position:absolute;top:48%;left:48%;transition:all .3s}.circle,.square{background-color:#000;align-items:center;justify-content:center}.moon{width:45px;height:45px;box-shadow:8px 8px 0 0 #fff}.window__game{height:500px;background-color:#0ff;box-shadow:0 0 10px rgba(0,0,0,.5)}