body{
  background:#111;
  color:#fff;
  font-family:sans-serif;
  text-align:center;
  margin-top:50px;
}

#game-box{
  width:270px;
  height:270px;
  margin:0 auto;
}

.sq{
  width:80px;
  height:80px;
  float:left;
  margin:5px;
  background:#222;
  border:1px solid #555;
  font-size:2rem;
  color:#fff;
  cursor:pointer;
}

#msg{
  margin:20px;
  font-size:1.2rem;
  height:25px;
}

#reset{
  padding:8px 16px;
  font-size:1rem;
  cursor:pointer;
}