.login-card {
    min-width:300px;
  }

.login-row {
    min-height: 500px;
}

.form-login {
    min-width:270px;    
}

.invalid-feedback {
    display: block !important;
    margin-top: .25rem;
    font-size: 80%;
    color: #a21e2c;
    text-align: center;
}

.invalid-feedback ul {
    margin: 0 auto;
    padding: 0;
}

.login-user, .login-password {
    width: 85%;
    margin: 0 auto;
}