GlimpseContent: A Clean Table of Contents Plugin

I packaged the table of contents feature in the bottom-left corner of this site as GlimpseContent. It normally appears as a column of short horizontal lines, showing headings when needed. You can view the formatting example.

• Only one JavaScript file and one CSS file are needed.
• Lists only second- and third-level headings; shows the corresponding heading on hover and highlights the current section as you scroll.
• By default, appears when the page is wider than 800px and the article has more than five headings in total.
• Fades in after the page has fully loaded, with support for dark mode and reduced motion preferences.
• Smooth scrolling on click; the container, header, and display threshold are configurable.

( October 6, 2026 )