The Active Navigation is an in-page navigation element that allows users to understand the contents of a page. It is best used for long pages containing multiple headers, each header containing varied content and interactive elements. It is most closely associated with the In-page Navigation Component in the U.S. Web Design System (USWDS) with a few key differences. --- The navigation horizontally scrolls to save vertical viewport space. This enables it to remain in view by sticking to the top of the user's window. --- The navigation includes a "Jump to top" link that will link to the page heading. --- The `aria-label` for the `nav` element is "Jump Navigation" in this example. Other recommendations from the USWDS include "On this page," "In this article," or "Table of contents."