Example graphs on the learn pages are being cut off at the bottom

[b-a0]

Thanks for including an extensive set of learning pages for dagitty. When going through the terminology pages I noticed that the example graphs are being cut off at the bottom, e.g.:

Missing "Y":

Part of "Z" missing:

Visiting some other pages in the learning section seems to show the same issue, so it's not isolated to these two examples. I've tried this out both in Edge and in Firefox, the graphs are cut-off in both browser.

Would it be possible to make the viewport for these graphs slightly bigger such that all graph labels remain legible?