Stylish is fully compatible with Ruby 1.9, although it doesn’t require it. Amongst other things, this means that if you’re running Ruby 1.9, you can take advantage of its new shorthand hash literal syntax. As the following example demonstrates, this makes code written in Stylish look even cleaner and more like CSS.

style = Stylish.generate do
  body color: "333" do
    em font_style: "italic"
    strong font_weight: "bold", color: "f00"
    p margin_bottom: "1em"
    rule "#header", background: {image: "header.png", repeat: "no-repeat"}