Example for rollup-plugin-postcss-modules
See it deployed at https://flying-sheep.github.io/rollup-plugin-postcss-modules-example/
The bundle.js demonstrates the generated code:
var style = {…, "myClass":"my-component_my-class__RPeiE"}
[…]
React.createElement("div", { className: style.myClass }, "Test")Which references the generated CSS:
.my-component_my-class__RPeiE {
background-color: lightgrey
}