This PSD file will demo custom WordPress CSS styles for all theme content. WordPress is a very dynamic system will render both custom WordPress CSS and external plugin CSS. There are default class names WordPress uses for general content rendering, Export Kit makes it easy to override these settings inside your design.
Testing the PSD
Use Exports View to render the WordPress theme, then upload to your server and test. You will need to activate each theme with a fresh install.
Using Exports View
Export the PSD in your required environment to see how shapes are rendered in your output.