oURL = $oURL; } public function setURL(CSSString $oURL) { $this->oURL = $oURL; } public function getURL() { return $this->oURL; } public function __toString() { return $this->render(new \Sabberworm\CSS\OutputFormat()); } public function render(\Sabberworm\CSS\OutputFormat $oOutputFormat) { return "url({$this->oURL->render($oOutputFormat)})"; } }