(div|section) .article-group
(div|section|ul) .article-list, .photo-list, .video-list, etc..
(div|article|li) .article-item, .photo-item, .video-item, etc..
(div|article) .article-item.no-image (used for an article with no thumbnail)
(div|article) .article, .photo, .video, etc..
(div|h1-6) .title
(div|header|footer) .meta
(div|header) .blurb
(div|a|img) .thumb
(div|article) .content*
(div|p|a|footer) .readmore
*Apparently, these fine gents think article content shouldn't be wrapped: check out the "Article" article here