Adding Custom CSS and Javascript

In each layout editor you will find a button at the top with custom CSS and JavaScript keys. Clicking on this button will open box like this:

In this dialog box you can fill any of your JavaScript or CSS. Keep in mind that you have to use <script> and <style> tags. Except for headers and footers, custom CSS and JavaScript only work in that particular layout page. Custom CSS / JavaScript of Header and Footer layout works on all pages. Because headers and footers appear on all pages.