You can do it by providing a hyperlink on that button by using the <a> tag.
Originally Posted by Ashish_gupta
However, note that this is not the officially recommended approach. If your web app is to contain multiple scenes, views, or pages you shouldn't create separate HTML pages and load them. If you do so, you may encounter rendering issues with any pages other than index.html.
<a href="first.html">Your button goes here</a>