.big{width:100%;height:calc(100vh - 220px);background-color:#f4f4f4;position:relative}.inner{position:absolute;top:50%;left:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%)}.inner p{text-align:center;font-size:24px}.inner .leftPic{width:60px;height:60px;margin-left:44%;margin-top:20px}