Missing images under 'Elements' Section

[AndrewH2O]

Element 1, 2 & 3 image symbols are missing.
This is a very useful resource thank you.

[maidis]

I fixed this problem in my Turkish C++ fork. And I accidentally posted a comment on an irrelevant issue in this project while closing issue. Sorry for the latter.

These might save you some trial and error:

maidis@9fa48ba
orsharir/github-mathjax#10