if (($layout == 'layout1' || $layout == 'layout3') && $i == 1) {
            $thumb_size = 'large';
        } else {
            $thumb_size = 'quadro-med-thumb';
        }
        ?>

							<?php 
        // Get post format
        $post_format = get_post_format($post_id);
        // Bring Feat. Image or Screenshot if video post
        if ($post_format != 'video' || has_post_thumbnail()) {
            $image = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), $thumb_size);
            $image = $image[0];
        } else {
            $image = quadro_video_screenshot_url(get_the_content());
        }
        $back_img = 'style="background-image: url(\'' . $image . '\');"';
        ?>

							<article>

								<a href="<?php 
        the_permalink();
        ?>
" rel="bookmark">
									<div class="display-back-img lazy" data-original="<?php 
        echo $image[0];
        ?>
" <?php 
        echo $back_img;
						<?php 
if ($videoposts->have_posts()) {
    while ($videoposts->have_posts()) {
        $videoposts->the_post();
        ?>
							<li class="videos-nav-item format-video">
								<?php 
        if (has_post_thumbnail() && !post_password_required()) {
            ?>
									<?php 
            the_post_thumbnail('thumbnail');
            ?>
								<?php 
        } else {
            // there's no thumbnail, try to bring a video screenshot
            echo '<img src="' . quadro_video_screenshot_url(get_the_content()) . '">';
        }
        ?>
							</li>
						<?php 
    }
}
// ends 'videoposts' loop
?>
						<?php 
wp_reset_postdata();
?>
					</ul>
				</div>

			</div>