Asset::addCss

public function addCss($path, $additional = false)
{
	if ($path == '')
	{
		return false;
	}

	$css = $this->getAssetPath($path);
	$this->css[$css]['TARGET'][] = $this->getTargetName();
	$this->css[$css]['ADDITIONAL'] = (isset($this->css[$css]['ADDITIONAL']) && $this->css[$css]['ADDITIONAL'] ? true : $additional);
	return true;
}