.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;
}