<?php app\widgets\Modal::begin(['id' => 'modal', 'options' => ['class' => 'modal-form fade']]); ?> <div id="modal-content"> <div class="modal-loader"> <div class="spinner"><div class="bounce1"></div><div class="bounce2"></div><div class="bounce3"></div></div> </div> </div> <?php app\widgets\Modal::end();