Almost certainly not a bug, but:
<div class="toccolours mw-collapsible mw-collapsed" "style="width:40em;">
Stuff to do
# In email to BH Tech support, note Recaptcha requires json.js
# Build quick front page with collapsible elements for mobile use
# Build pages for committees
# Build editable pages for event suggestions
# Build page with Google Maps to show membership location by town
# Mediawiki IFrame install Calendars and Google Docs
Build an administrators site
Have the identical css into MediaWiki:Common.css and MediaWiki:Mobile.css.
Am missing something, appreciate help.
Cannot find a MW pages that had cut-and paste collapsible section code I used on a practice site last summer. That site not retrievable.
Plan to login and join the community when I can get past an oddly finicky Create account page.