.lock-container{height:100%;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;position:relative}.lock-container .title{margin-bottom:8px;color:#333}.lock-container:before{z-index:-999;content:"";position:absolute;left:0;top:0;width:100%;height:100%;background-image:url(/img/bg/login.png);background-size:cover}.lock-form{width:300px}