Review Summary

Your solution is approved because all core requirements of the decomposition task are correctly implemented. App.jsx is cleanly split into Welcome, Header, and Article components, with Navigation extracted into its own component and used from Header, and all of these live in separate folders with matching .jsx and .css files as required [CHECKLIST ITEM #2]. Each component uses export default, and your JSX layout avoids the “too many blank lines between components” issue described in the checklist [CHECKLIST ITEM #1]. There are no visible functional problems or broken imports, and the project structure and CSS separation follow the task description well.

The remaining points are non-code: please double‑check that all new files are added and committed with git status [CHECKLIST ITEM #3], ensure Prettier + VSCode format-on-save are set up, and confirm you’ve run npm test and added the required demo link to your PR description. Overall, this is a solid, clean implementation of the required component decomposition—well done.

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