Local events feed (Happenings)

Resubmitting after review
Ending up with long selectors like this makes your CSS hard to read, and more importantly adds specificity where it's not necessary. This selector has 122 specificity points, and to create an `.add-image` elsewhere would require getting above that number. From a maintenance perspective, this will become REALLY hard. Read about SMACSS for more.

(also, keep in mind that CSS rules are parsed right-to-left, so scoping to `#user-event-showings` is not actually helpful from a performance standpoint. we usually try for selectors that are 3 or fewer parts.)