Return all the awesome work @clioweb did.

Adds CSS for jQuery accordion and chart on prism visualization. CSS originally
committed in d8c4c9737ee501c09ddd7903946caf16aa0e416a and lost in
662290147f53e8524b417dc3732a499a309c4a9d and
958f8318c842c9b330641051a47512e0c9e200b0.
ERMAHGERD NER HERERZERNTERL RERL.

Removes horizontal rules from visualization page.