MediaWiki:Common.css

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/* CSS placed here will be applied to all skins */
 
/* Hide [Watch] tab */
#ca-watch { display: none !important; }
 
/* Hide [History] tab */
#ca-history { display: none !important; }
 
/* Hide [View Source] tab */
#ca-viewsource { display: none !important; }
 
/* Hide [Discussion] tab */
#ca-talk { display: none !important; }