Short answer... yes.
Your sitestyle selected in Style View is the default for the entire site.
On an individual page or pages, you can override the default, but it takes a few steps to do so.
First, make a new master border for the page(s) you want to style differently.
You can set a different style for navbars and banners using their properties.
You can modify page-level text styles using the Text menu on a page, then Edit Text Styles.
You can set a different background for a page using the Layout properties.
Those are the items included in a style.