public static function addCssStyle($style, &$htmlOptions)
    {
        if (is_array($style)) {
            $style = implode('; ', $style);
        }
        $style = rtrim($style, ';');
        $htmlOptions['style'] = isset($htmlOptions['style'])
            ? rtrim($htmlOptions['style'], ';') . '; ' . $style
            : $style;
    }