My web application is built with node.js for the back-end and react.js for the front-end. I've utilized sass for writing the css, but now I'm curious if there's a way to connect node and sass so that when a user makes a request (such as changing font-size) on the client-side, a new css file can be generated and sent to the web application. If this is achievable, what module or library should I explore for implementation?