.login-dark form {
  max-width: 320px;
  width: 90%;
  background-color: rgba(252,248,254,0.67);
  padding: 40px;
  border-radius: 4px;
  transform: translate(-50%, -50%);
  position: absolute;
  top: 50%;
  left: 50%;
  color: #fff;
  box-shadow: 3px 3px 4px rgba(0,0,0,0.2);
  margin: auto;
}

.login-dark .illustration {
  text-align: center;
  padding: 15px 0 20px;
  font-size: 100px;
  color: #37008b;
  height: 148px;
}

.login-dark form .form-control {
  background: none;
  border: none;
  border-bottom: 1px solid #1d23a2;
  border-radius: 0;
  box-shadow: none;
  outline: none;
  color: #461980!important;
}

.login-dark form .btn-primary {
  background: #68437a;
  border: none;
  border-radius: 4px;
  padding: 11px;
  box-shadow: none;
  margin-top: 26px;
  text-shadow: none;
  outline: none;
}

.login-dark form .btn-primary:hover, .login-dark form .btn-primary:active {
  background: #3a37e7 !important;
  outline: none;
  color: #fff!important;
}

.login-dark form .forgot {
  display: block;
  text-align: center;
  font-size: 12px;
  color: #6f7a85;
  opacity: 0.9;
  text-decoration: none;
}

.login-dark form .forgot:hover, .login-dark form .forgot:active {
  opacity: 1;
  text-decoration: none;
}

.login-dark form .btn-primary:active {
  transform: translateY(1px);
}

.form-control:focus {
  color: #495057;
  background-color: #fff;
  border-color: #80bdff;
  outline: 0;
  box-shadow: 0 0 0 .2rem rgba(0,123,255,.25);
}

#error_msg {
  visibility: none;
}

#optician-user, #email {
    font-size: small;
    display: block;
}