RapidWeaver Stacks add-on info:
Sticky Scroll Stack
When user scroll down your RapidWeaver Stacks page you can help your user by sticking headlines to the top of the browser window… one by one. To let your visitor know what section of your site is being browsed.
Nice animation effect when your sticky stack sticks to the top of the browser window. You can turn off the sticky feature on smartphones.
Your of course not limited to stick headlines, you can stick almost any Stack you like.
RapidWeaver, stacks, responsive, layout, sticky, scroll