Espresso lets you design live websites, even with style sheets powered by SCSS or LESS. First, make sure you’re seeing deliriousair.com/wow in the location field above.
You’ll only see this paragraph once the override is active. Try Xray on it to go to the relevant style.
To get a sense of what Dynamo can do, have a look at the “wow.esdynamo” folder in the Welcome project. It generates this very page! Dynamic style sheets, Markdown and smart HTML. Yum.