.web-box{width:100%;height:100%}.pointer-box{position:absolute;bottom:30px;right:30px;z-index:3;width:100px;height:100px;display:flex;flex-direction:row;flex-wrap:wrap}.screen-box{width:800px;height:500px;position:relative}.btn-item{width:33px;height:33px}.cursor{cursor:pointer}