Periodic Table of Chemical Elements that requires an HTTP server.
A shallow fork of https://github.com/valter1977/Pertable/ with all goodies from upstream and most flaws/bugs by me.
The Periotic Table of Chemical Elements has been implemented at upstream by Valter Kiisk
https://kodu.ut.ee/~kiisk/pertable/pertable.htm
and its technology is HTML+CSS+JavaScript. The JavaScript downloads data at runtime, so a HTTP server is needed to view that table of chemical elements. The HTTP server has been bundled to this project.