Not sure how to use the files from the teacher notes with my application

I downloaded the files from the teacher notes, and I wasn't sure what to do with them, so I moved the folder into my flashcards folder, and I used app.use(express.static("/js-express-basics-flashcard-assets/js-express-basics-flashcard-assets/public")). When I go to http://localhost:3000/stylesheets/style.css, it returns the not found error, Flash Cards Not Found 404 Error: Not Found at C:\Users\babyoscar\flashcards\app.js:20:17 at Layer.handle [as handle_request] (C:\Users\babyoscar\flashcards\node_modules\express\lib\router\layer.js:95:5) at trim_prefix (C:\Users\babyoscar\flashcards\node_modules\express\lib\router\index.js:317:13) at C:\Users\babyoscar\flashcards\node_modules\express\lib\router\index.js:284:7 at Function.process_params (C:\Users\babyoscar\flashcards\node_modules\express\lib\router\index.js:335:12) at next (C:\Users\babyoscar\flashcards\node_modules\express\lib\router\index.js:275:10) at C:\Users\babyoscar\flashcards\node_modules\express\lib\router\index.js:635:15 at next (C:\Users\babyoscar\flashcards\node_modules\express\lib\router\index.js:260:14) at Function.handle (C:\Users\babyoscar\flashcards\node_modules\express\lib\router\index.js:174:3) at router (C:\Users\babyoscar\flashcards\node_modules\express\lib\router\index.js:47:12) An app to help you study I'm not sure what to do with the files. Can someone help? Thanks.