This script allows you to add custom scroll bar for content box. For details about the script, please visit this link.
In order to make the script work, the index-#.html file should contain these lines of HTML code include the jquery.ScrollPane.js script, jquery.mousewheel.js script and the jQuery framework:
jquery.mousewheel.js is an optional script, with its help you can scroll using the mouse wheel.
Initialize jScrollPane on document.ready using a selector .scroll-pane which will find the content you want to apply jScrollPane to. Settings object documentation you can find by this link: Options Reference page.
Below you can see general HTML script representation:
You can find script related stylesheet in the main style.css file.