'form-signup']); ?>
                = $form->field($model, 'username')->textInput(['autofocus' => true]) ?>
                = $form->field($model, 'email') ?>
                = $form->field($model, 'password')->passwordInput() ?>
                
                    = Html::submitButton('Signup', ['class' => 'btn btn-primary', 'name' => 'signup-button']) ?>