The canonical three-pane developer documentation layout: fixed sidebar navigation, a readable prose column, and a sticky on-page table of contents, set in a quiet blue-accented light palette with tinted code blocks, copy buttons, and colored callout admonitions. Optimized for scanning, deep-linking, and long reading sessions.
Primary actionThe three-pane frame itself: a 240px fixed nav tree left, ~700px prose column center, and a sticky right-hand 'On this page' TOC that highlights the active heading as you scroll.