body,div,h2,html,p,span{margin:0;padding:0;box-sizing:border-box}a{text-decoration:none}body,html{height:100%}.null-warrper{width:810px;height:450px;margin:-225px auto 0;position:relative;top:50%}.null-warrper .left-icon{width:317px;height:100%;float:left}.null-warrper .right-content{float:left;width:409px;margin-left:82px;padding-top:42px}.null-warrper .right-content .right-icon{width:310px;height:100px}.null-warrper .right-content h2{margin-top:65px;font-size:30px;line-height:30px}.null-warrper .right-content .prompt{margin:16px 0 76px;font-size:28px;color:#666}.null-warrper .right-content .btn{width:160px;height:60px;display:inline-block;margin-right:37px;border-radius:8px;background:#398bf1;color:#fff;font-size:24px;line-height:60px;text-align:center}