final class Div implements HtmlWidgetInterface
{
	private $_content;
	public function __construct($content)
	{
		if (!is_string($content) || empty($content)) {
			throw new HtmlWidgetException('Element must be a non-empty string.');
		}
		$this->_content = $content;
	}
	public function getContent()
	{
		return $this->_content;
	}
	public function render()
	{
		return '<div>' . $this->_content . '</div>';
	}
}