function sb_show_tag_name( $content ) {

    if( is_singular('post')) {
        $content .= '<div class="tag-box">' . PHP_EOL;
        $content .= do_shortcode( '[post_tags before="Related Tags: " sep=" • " ]' ) . PHP_EOL;
        $content .= '</div>' . PHP_EOL . '<!-- .tag-box-->';
    }

    return $content;
}