No Sidebar

This page has enough headings below to qualify for the automatic "on this page" table of contents, but sets extra.sidebar = false in its front matter to force the sidebar off regardless. The article body must reclaim the full 12 grid columns instead of leaving columns 9–12 empty.

First heading

Enough content to make this a real heading.

Second heading

A second heading, which would normally push the heading count to 2 and trigger the automatic sidebar TOC — if the explicit override above weren't set.