Sticky Sidebar
Pure JavaScript tool for making smart and high performance bar
Sticky Sidebar ⬆⬇ is a pure JavaScript plugin for making smart and high-performance sticky sidebar, works with the sidebar if it’s taller or shorter than the viewport, is integrated with a resize sensor to re-calculate the dimensions automatically when the size of the sidebar or its container is changed, supports jQuery/Zepto and compatible with Firefox, Chrome, Safari, and IE9+. The source can be found on GitHub.