protected function getElem($key, ...$additionalKeys)
	{
		$el = $this->configElem($key, Html::el());

		foreach ($additionalKeys as $additionalKey) {
			$config = $this->fetchConfig($additionalKey);
			$el = $this->configElem($config, $el);
		}

		return $el;
	}
protected function getElem($key, ...$additionalKeys)
	{
		$el = $this->configElem($key, Html::el());

		foreach ($additionalKeys as $additionalKey) {
			$config = $this->fetchConfig($additionalKey);
			$el = $this->configElem($config, $el);
		}

		return $el;
	}
protected function getElem ( $ key , ... $ additionalKeys ) { $ el = $ this -> configElem ( $ key , Html :: el ( ) ) ; foreach ( $ additionalKeys as $ additionalKey ) { $ config = $ this -> fetchConfig ( $ additionalKey ) ; $ el = $ this -> configElem ( $ config , $ el ) ; } return $ el ; }
Get element based on its first-level key
@param       $key
@param array ...$additionalKeys config will be overridden in this order
@return Html|null
Get element based on its first - level key