The header

The header is built by dragging elements into two areas: Header and Header Aside. On this site the main menu sits in the Header, and Search (set as a toggle, so it stays compact) and the Beacon Menu sit in the Aside.

Any page can override the header through its Layout options: remove it entirely, remove the logo or menu, or swap in a different menu. See it live: the newsletter page

Set it under MD Settings → Header.