<?php
    /**
     * @var View  $this
     * @var array $data
     * @var array $browsers
     * @var array $cityes
     * @var array $countries
     */
    
    use yii\web\View;
    use yiister\gentelella\widgets\Panel;

?>

<div class="row">
    <?php $panel = Panel::begin(
        [
            'header' => 'Instruction',
        ]
    ) ?>
    <div class="jumbotron">
        <h1>Hello, world!</h1>
        <p>This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or information.</p>
    </div>
    <?php $panel::end(); ?>
</div>

