functions.php

//* Enqueue files needed for Vertical Tabs script
add_action( 'wp_enqueue_scripts', 'enqueue_vertical_tabs' );
function enqueue_vertical_tabs() {

    wp_enqueue_style( 'jquery-ui-css', 'http://code.jquery.com/ui/1.11.0/themes/smoothness/jquery-ui.css', array(), CHILD_THEME_VERSION );
    wp_enqueue_style( 'vertical-tabs-css', 'https://raw.githubusercontent.com/tjvantoll/jquery-ui-vertical-tabs/master/vertical-tabs.css', array(), CHILD_THEME_VERSION );
    wp_enqueue_script( 'vertical-tabs-js', 'https://raw.githubusercontent.com/tjvantoll/jquery-ui-vertical-tabs/master/vertical-tabs.js', array('jquery-ui-tabs'), '1.0.0', true );
    wp_enqueue_script( 'vertical-tabs-init',  get_stylesheet_directory_uri() . '/js/vertical-tabs-init.js', array( 'vertical-tabs-js' ), '1.0.0', true );
}