The CSS selector length myth Posted by onderhond on Friday May 24, 2013 @06:09AM from the onderhond.com dept. http://www.onderhond.com/features/css-musings/css-selector-length ( 1 comment | 3 points | on HN )
For instance, because it's considered a best practice to avoid "Modifying Components Based On Who Their Parents Are". Please see this article: http://engineering.appfolio.com/2012/11/16/css-architecture/