Create a new template page from the original one but with slightly different styles

This section will show you how to create a new template page to be used for the whole website. The styles from the original template page will only be used on the index page. We will use Template 18 to demonstrate this.
The original Template:
A blank page using the original template page:
We are going to create the following one to replace the original template page.
Please note that if both template pages are used on several other pages. You may be better off using two template pages.