Show Top 3 Posts Wordpress

<div class="row">
    <?php
    $query = new WP_Query(array(
        'posts_per_page'   => 3,
    )); 
while ($query->have_posts()): $query->the_post(); ?>
    <div class="col-md-4 col-sm-6 col-xs-12">
       <article class="post-item">
        <div class="post-tile">
        <a href="<?php the_permalink(); ?>" class="media-box"> <?php echo get_the_post_thumbnail( get_the_ID(), 'large'); ?></a>
             <div class="tile-date">
             <span class="date-day"><?php echo get_the_date('d', $post->ID); ?></span>
              <span class="date-month-year"><?php echo get_the_date('M Y', $post->ID); ?></span>
             </div>
        </div> 
       <div class="post-content">
        <h1 class="tile-title"><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h1> 
         <?php drhmcrcwp_excerpt('drhmcrcwp_custom_post'); ?> 
       </div>
       </article>
    </div>
  <?php endwhile; ?> 
    </div>