Support Forum

Not sure if it will work, but you could try this function:

add_filter( 'post_class', function( $classes ) {
    global $post;

    if ( ! $post->post_content ) {
        $classes[] = 'no-content';
    }

    return $classes;
} );

Then you can do this:

.wp-show-posts .no-content {
    display: none;
}

Let me know 🙂