The case downloaded from http://jqueryui.com/ contains too much css and js. How to obtain these? _html/css_WEB-ITnose

The source code downloaded from http://jqueryui.com/ introduces all css and js in each case. It is too troublesome. How to remove unnecessary styles and scripts?
--Rookie

Reply to discussion (solution)

If you want to read it, you should download it here.
https://github.com/jquery/jquery-ui

https://github.com/jquery

If you want to take a look, you should download it here.
https://github.com/jquery/jquery-ui

https://github.com/jquery

Thanks.