// register jquery and style on initialization add_action('init', 'register_script'); function register_script(){ wp_register_script( 'custom_jquery', plugins_url('/js/custom-jquery.js', __FILE__), array('jquery'), '2.5.1' ); wp_register_style( 'new_style', plugins_url('/css/new-style.css', __FILE__), false, '1.0.0', 'all'); } // use the registered jquery and style above add_action('wp_enqueue_scripts', 'enqueue_style'); function enqueue_style(){ wp_enqueue_script('custom_jquery'); wp_enqueue_style( 'new_style' ); }