This is a No Header Page
A no header page is simply a page without a header. While this might look like header, it's not--it's just a Weebly Section block we dragged in right under the navigation bar.
You currently have the "Edit Top Bar" toggle on. This lets you edit the top bar text without interference from Weebly's default pop-up tools. If this was an accident, or if you want to go back into the default view, simply go into the "Theme" Tab, click on "Theme Options" and de-select the Edit Top Bar. Cheers!