User blog comment:DEmersonJMFM/Understanding CSS Selectors/@comment-26402117-20160427173215/@comment-5558012-20160428162929

Main wiki:
 * Wikia.css - 7 header-related uses, 1 commented out probably ready to be deleted, 2 additional uses (~ 375 lines, also excluding headers)
 * Common.css - 1 use associated with UserTags (~ 120 lines)

Personal:
 * Global.css - 4 header-related uses, 2 global nav, 3 additional uses (some of which is the same from the main wiki) (~ 140 lines)