Simple related posts - Wordpress

content.php

<?php 
  $relatedMeta = get_post_meta(get_the_ID(), 'related_posts', false); 
  $related = explode(" ", $relatedMeta[0]);
?>

<?php if ($relatedMeta): ?>
  <div class="related-posts">
    <?php foreach($related as $item): ?>
      <div class="related-post">
        <a href="<?php echo get_permalink($item) ?>">
          <img src="<?php echo get_the_post_thumbnail_url($item) ?>" alt="Thumbnail" class="related-image">
          <span class="title"><?php echo get_the_title($item) ?></span>
        </a>
      </div>
    <?php endforeach; ?>
  </div>
<?php endif; ?>

style.css

.related-posts {
    display: flex;
    justify-content: space-between;
    margin-top: 55px;
}

.related-post {
    flex-basis: 48%;
}

.related-image {
    margin-bottom: 10px;
    border: 1px solid #7a7a7a;
}