Script
// Register Script function custom_scripts() { wp_register_script( 'respond', '//cdnjs.cloudflare.com/ajax/libs/respond.js/1.4.2/respond.min.js', false, false, false ); wp_enqueue_script( 'respond' ); } // Hook into the 'wp_enqueue_scripts' action add_action( 'wp_enqueue_scripts', 'custom_scripts' );