Clicking "show me the solution" takes you to the wrong anchor

I just observed this in the [git lesson](https://swcarpentry.github.io/git-novice/aio.html). If you look up "choosing a commit message" and click "Show me the solution", the page scrolls up or down to the wrong location. Same when you click again to close it. I reproduced this both on Firefox and Chromium. Thanks!