.login_border {
  position: relative;
}
.login_border > .login {
  width: 600px;
  position: absolute;
  margin: 0 auto;
  left: calc(50% - 300px);
  top: 150px;
}
.login_border > .login > .was-validated .form-control:valid {
  border-color: #bdbdbd !important;
}