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On “Does google and/or bing crawler penalize content inside hidden twitter bootstrap tabs”
Googlebot crawler takes since last year js and css as stated by Matt Cutts in this video: link to this video
To answer your question there is a fresh Matt Cutts video here link to this video. What he says is that if you use js or css to hide content in a non-spammish way google will not take action against it and will consider your content just like any other content on your site.