public function appendStyle($cssStyle)
    {
        $cssStyle = trim($cssStyle, " \n;");
        $cssStyle && $this->styles[] = $cssStyle;
        return $this;
    }
public function appendStyle($cssStyle)
    {
        $cssStyle = trim($cssStyle, " \n;");
        $cssStyle && $this->styles[] = $cssStyle;
        return $this;
    }
public function appendStyle ( $ cssStyle ) { $ cssStyle = trim ( $ cssStyle , " \n;" ) ; $ cssStyle && $ this -> styles [ ] = $ cssStyle ; return $ this ; }
Add css style to the element
@param string $cssStyle
@return $this
Add css style to the element