Technical notes on web development, DevOps, and AI integration.
1 article
A position sticky sidebar that scrolled away with the page, and the three CSS preconditions I now check before trusting sticky again.
TL;DR: A sticky sidebar in a flex layout failed silently because it broke all three preconditions. Flexbox's default stretch left the aside no scroll room, fixed with items-start, while a fixed header demanded a custom top offset. The author now avoids overflow-clipping ancestors, removed redundant height caps, and made this layout a standard pattern.