.box{width:800px;height:600px}.control-box{width:180px;height:180px;margin:150px 50px 30px 50px}.control-box span{display:inline-block;text-align:center;float:left;width:60px;height:60px;padding:5px;border-radius:50%;-webkit-box-sizing:border-box;box-sizing:border-box;line-height:50px;cursor:pointer}.control-box span:hover{background-color:#67c23a;border:none}p{font-size:12px}