Sticky footers in Bootstrap keep the footer glued to the page bottom even with short content, using simple Flexbox tricks like full-height body and growing main sections, debugged by inspecting flex properties in dev tools.
Turn your body into a flex column that spans the full viewport height, let the main content expand to fill space, and the footer naturally hugs the bottom, no more floating or overlapping headaches. For debugging, pop open browser dev tools: check if h-100 hits html/body, confirm main has flex-grow-1, and watch for padding/margins sneaking in to break the flow. Test with minimal content first, then add more to see it push perfectly; Bootstrap 5's min-vh-100 adds extra viewport safety.
March 18, 2026
5 min read
