keshavgbpecdelhi/Web-Development ? reverse-engineered prompt

Build me a new beginner friendly mini project for this web development collection, something simple, useful, and fun that fits with the existing HTML, CSS, and a little JavaScript demos.

I want it to feel like the other small practice pages in this repo, so make it clean, responsive, and easy to understand for someone learning. Please keep the code straightforward, use just plain web tech, and make sure it works well in the browser without any setup.

If you need to, look up current docs online for any browser features or best practices, but keep the final result lightweight. Also add whatever files or updates are needed so it can be opened and shown like the other projects in the list, and include a short README style note for what the project does. If there is a good gap in the existing collection, pick a project idea that is different from the current ones and would be useful for a beginner to build and learn from.