public function content($content)
    {
        if ($content instanceof Renderable) {
            $this->content = $content->render();
        } else {
            $this->content = (string) $content;
        }

        return $this;
    }
public function content($content)
    {
        if ($content instanceof Renderable) {
            $this->content = $content->render();
        } else {
            $this->content = (string) $content;
        }

        return $this;
    }
public function content ( $ content ) { if ( $ content instanceof Renderable ) { $ this -> content = $ content -> render ( ) ; } else { $ this -> content = ( string ) $ content ; } return $ this ; }
Set box content.

@param string $content

@return $this
Set box content .