您可以向每个帖子添加自定义类。以下是一种方法的快速示例：

add_action(\'post_class\',\'YOURNAME_post_class\');

function YOURNAME_post_class( $classes ) {

    global $wp_query;

    if( ! $wp_query->is_main_query() )
        return $classes;

    $classes[] = \'class-on-all-posts\';
    if( 0 == $wp_query->current_post || 0 == $wp_query->current_post % 3 )
        $classes[] = \'class-on-every-third-post\';
    if( 0 == $wp_query->current_post || 0 == $wp_query->current_post % 2 )
        $classes[] = \'class-on-every-second-post\';
    return $classes;


}