<?php if (has_post_thumbnail( $post->ID ) ):?>
<div class="post-media">
<?php $cooper_image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), '' );?>
<img src="<?php echo esc_url($cooper_image[0]);?>" alt="<?php the_title_attribute();?>" class="respimg">
</div>
<?php else:?>
<?php get_template_part('post-formats/standard-single'); ?>
<?php endif;?>