Your ${css|styles} folder will contain all the custom CSS class styles to reuse in your design. All elements added to this folder will render as a CSS class in the output using the element name, styles and effects. Add layers to your ${css|styles} folder to create custom CSS classes based on the layer. All layer will maintain effects and styles in the output. You should use “_” (underscore) with layer names and NOT ” ” (space). CSS classes will output following our Layer Naming Rules.