Scroll Viewport is an add-on and framework that makes it very easy to use Confluence as a Content Management System for websites, intranets, documentation sites, and more. With Scroll Viewport, you can deliver content to readers through viewports, which provide a view of Confluence content that you can style in any way you want.
However, viewports created with Scroll Viewport are not Confluence themes. Unlike other Confluence themes, Scroll Viewport does not replace the Confluence UI. Instead, it uses a CMS-like approach by separating viewing the styled content from editing in the Confluence UI. It provides a completely separate way to access pages and blog posts in Confluence.
Now you've learnt what viewports are, you can go ahead and configure your first viewport.