(just confirming) At English Wikisource we have had built into the templates the components for different browsers. I am presuming that is all left out of the extension and should be pumped into global.css. Thanks.
Topic on Talk:Contributors/Projects/Columns for references
I don't understand your question.
The code to support multi-column references lives in the Cite repo and supports Chrome/Firefox/Opera/Safari/IE/Edge as normal. Nothing needs to be added to "global.css" (I presume you mean Common.css?)
Thx @Jdforrester (WMF) I did mean commons.css. The link is useful, especially for those who struggle find code-snippets like that in the morass of places.
Sure. :-) As always, please don't add anything Common.css unless you have an incredibly good reason to do so, as it slows down the site for all users; in general we can set things in config instead (and if we can't, we can build it).