Topic: Markaby and CSS tags

I'm on my first solo rails voyage and am taking Markaby along for the ride!

I am building an app based loosely around the tutorial in the Agile Rails book. I am trying to write some mab code in place of rhtml and have hit a problem:

I have a CSS file (basically a copy of the "depot.css" file from the book) that contains CSS div tags of the form "product-list".

I would expect the syntax in Markaby to be

div.product-list do


However, this doesn't work and I think it's because ruby sees this as an expression "product minus list".

As it's common practice for CSS style tags to be written "word-word-word", I wondered if there is a workaround (or, if I am plainly doing something wrong) ?