The search doesn't work at all it seems.
- The results don't link to their page, there is no anchor link.
- The results are inaccessible, there is no hover or selection state, content has a text cursor instead of a pointer.
- The results are not keyboard accessible, cursor keys do nothing.
- The results feel out of place, mostly unstyled/lacking spacing.
- The results flicker when you focus the search field.
Consistently reproducible in Firefox and Safari on macOS on https://doc.wikimedia.org/oojs/master/, and also with local builds.