This is at most a UX bug on your website, which also happens to be annoying and very easy to fix so it was hard not to report it somewhere. I hope I’m in the right place.
In every package’s page, there’s a “Test with RunKit” button on the right. The CSS makes the whole button transform the cursor into a hand pointer, even though the a element is only the text:
For completeness sake, I observed this using the latest versions of Chrome and Firefox, running in macOS 10.12.6.