@charset "UTF-8";
/*
    Template: swell
    Theme Name: SWELL CHILD
    Theme URI: https://swell-theme.com/
    Description: SWELLの子テーマ
    Version: 1.0.0
    Author: LOOS WEB STUDIO
    Author URI: https://loos-web-studio.com/

    License: GNU General Public License
    License URI: http://www.gnu.org/licenses/gpl.html
*/
//サムネイルを指定
add_action( 'wp_head', 'add_meta_to_head' );
function add_meta_to_head() {
echo '<meta name="thumbnail" content="' .wp_get_attachment_url( get_post_thumbnail_id() ). '" />';
}