With WordPressChess(dhtmlchess.com for WordPress), you can play games against StockfishJS in your web browser.
The short tag which you use in your post is:
[chess comp="1" theme="wood7"]
The theme attribute is optional for overriding the default theme selected for your site.
In the first games, StockfishJS will play on a very limited playing strength. As your ELO rating increases, so will StockfishJS playing strength.
The result is what you see below: