<?php 
use \yii\helpers\Html;
use \yii\widgets\ActiveForm;

?>
<div class="col-md-offset-4 col-md-4">
    <h1> <?='Welcome'.' '.\Yii::$app->user->identity->username ?> </h1>
    <div class="admins-form">

        <?php $form = ActiveForm::begin(); ?>

        <?= Html::a(Yii::t('app', 'Change Password'), ['change-password', 'id' => \Yii::$app->user->identity->id], ['class' => 'btn submit-btn change-password',]) ?>

        <?php ActiveForm::end(); ?>

    </div>
</div>