![](https://www.bram.us/wordpress/wp-content/uploads/2021/05/scrollnav-background-css-1568x1117.png)
Davor Suljic created a fork of my Smooth Scrolling Sticky ScrollSpy Navigation that — instead of using IntersectionObserver — uses some background magic to highlight the active navigation items. The result is a “Pure CSS” implementation: If you turn on an outline on one of the content sections it becomes clear how it exactly works: …
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