Issue Description: Minor gripe: Clicking 'Return to top' hexagon doesn't fill the hexagon
Steps to Reproduce: Load any product. Scroll half way down the page. Click 'Return to top' hexagon in Chapters. I expect 'Return to top' to be filled as the page returns to top. Actual: The second chapter has the hexagon filled
Rae,James
I will tack onto this with another grouse. The tooltip that says the section, while helpful, flies under my mouse and obscures what I'm clicking on.
Found by: Olivieri,Celina (elle, la | she, her)