Please, tell us what's the problem?

[ ] A typo
[ ] Wrong documentation
[x] Improvement of existing article
[ ] Missing documentation
[ ] New article needed

Please, tell us more details

I can't scroll the right column ("In This Article") separately. I have to scroll the whole page to the end to see if there is more links (headings), which doesn't benefit me at that point. Same is true for the left column (Topics). For example, open The Basics page.