.yongjin-wrap{background-image:url(https://static.dingdandao.com/32d22192869556aa623d7d78da070d36);background-repeat:no-repeat;background-size:100% 100%;min-height:100vh}.tips{background-color:#000;padding:4px;text-align:center;position:absolute;bottom:0;color:#fff;text-decoration:none}