If we built your website for you, then (in most cases) you have the ability to add buttons, create custom typography and a host of other features.
And you can do all this from within your post editor screen.
The system uses a widely-used facility in WordPress called shortcodes.
In the editor controls, look for the Woo Shortcodes dropdown (see image) and you’ll find the shortcode generator.
More info on what they look like on your website is here: http://demo.woothemes.com/canvas/shortcodes/
The tutorial on how to use them is here: https://docs.woothemes.com/document/shortcodes/