Practice/_src/admin/scss/_pages.scss

#login-form {
  width:100%;
  height:100%;
  display:flex;
  background:url(../images/admin/login-bg.jpg);
  justify-content: center;
  align-items: center;

  .login-logo {
    font-size:32px;
    font-weight:900;
    color:#fff;
    -webkit-animation: SLIDE-UP 0.6s linear forwards;
    -o-animation: SLIDE-UP 0.6s linear forwards;
    animation: SLIDE-UP 0.6s linear forwards;
    margin-bottom:20px;
    text-align:center;
  }

  .login-notice {
    color:#ccc;
    font-size:12px;
    text-align:center;
    letter-spacing: -0.04em;
    margin-top:10px;
  }
  .login-panel {
    -webkit-animation: SLIDE-DOWN 0.6s linear forwards;
    -o-animation: SLIDE-DOWN 0.6s linear forwards;
    animation: SLIDE-DOWN 0.6s linear forwards;
    border:1px solid #788694;
    width: 320px;
    box-shadow: 0 0 10px #000;
    border-radius: 8px;
    overflow: hidden;
    background: rgba(0,0,0,0.5);
    margin:0 auto;

    .login-heading {
      padding: 10px 15px;
      border-top-right-radius: 2px;
      border-top-left-radius: 2px;
      color: #ccc;
      border-bottom: 1px solid #788694;
      font-size: 0.9em;
      background: rgba(255,255,255,0.1);
      text-align:center;
    }

    .login-body {
      padding: 20px 20px;
      color: #eee;
      text-align: left;
    }

    .form-control {
      background:transparent;
      text-align:center;
      color:#fff;
      border: #ccc 1px solid;
    }

    .btn {
      background:#000;
      color:#fff;
      border:1px solid #ccc;
      padding: 10px;
    }
  }
}