public function addClass($class)
    {
        $this->setOption(self::OPTION_METHOD, "addClass");
        $this->setOption(self::OPTION_ADD_CLASS, $class);

        return $this;
    }
public function addClass($class)
    {
        $this->setOption(self::OPTION_METHOD, "addClass");
        $this->setOption(self::OPTION_ADD_CLASS, $class);

        return $this;
    }
public function addClass ( $ class ) { $ this -> setOption ( self :: OPTION_METHOD , "addClass" ) ; $ this -> setOption ( self :: OPTION_ADD_CLASS , $ class ) ; return $ this ; }
Add CSS class to container

@param string $class
@return Container
Add CSS class to container