Now in Zend_Dojo_View_Helper_Dojo_Container we may adding stylesheet by absolute path.

// If we use CDN
$this->dojo()->addStylesheet('http://ajax.googleapis.com/ajax/libs/…');

// If we use local copy
$this->dojo()->addStylesheet('/js/dojotoolkit/dojox/image/resources/Lightbox.css');

I think, it will be more useful if we will have some metho addInternalStylesheet:

$this->dojo->addInternalStylesheet('dojox/image/resources/Lightbox.css');

Implementation of this method is very simple:

//
    public function addInternalStylesheet($path)
    {
        if ($this->useCdn()) {
            $base = $this->getCdnBase()
                  . $this->getCdnVersion();
        } else {
            $base = $this->_getLocalRelativePath();
        }

        $this->addStylesheet($base . '/' . $path);

        return $this;
    }