How to include shopping cart in the site template that does not have that function?

I bought a html5 site template for my webpage. I really like the template but it does not have the shopping cart on it. Is there any ready made plugins that I can throw to a page? which also go well with the style and theme?

Please advice. Thanks a lot.

Snipcart static ecommerce included, Very easy to setup and work perfect.

We are the author of an ecommerce HTML template Stanza Store

When you develop your ecommerce template on a woocommerce platform you can use the default cart pages of woocommerce and apply the relevant HTML CSS etc. changes to make it look like the template.

Unless you have the designs of the shopping cart in your ecommerce template like we have here and login / sign up