MediaWiki:Common.css

/* CSS placed here will be applied to all skins */

$wgHooks['SkinTemplateSetupPageCss'][] = 'wfHideVariousTabsFromAnonymous';

function wfHideVariousTabsFromAnonymous( &$hidetabcss ) {
	global $wgUser;

	if ( !$wgUser->isLoggedIn() ) {
		$hidetabcss .= 'li#ca-history, li#ca-viewsource, li#ca-edit, li#ca-talk, .vectorMenu { display: none; }';
	}

	return true;
}