- 📘 Mozilla Developer Network (MDN) — CSS Docs
- 🎨 CSS Generator
- 🌐 W3Schools – HTML Tutorial
- 📐 CSS‑Tricks – A Guide to Flexbox
- 💻 CodePen – Flexbox Playground
- 🧠 NN/g – Ten Usability Heuristics
- 🛠 Can I Use – Browser Support Checker
- 📚 Stack Overflow
A super‑reliable guide to all things CSS. It explains every property with examples and shows how stuff actually works across browsers — perfect for learning or double‑checking how to style things.
A playful tool that generates CSS code for you! Want a gradient, shadow, or fancy button style? Pick options and let the site create the code — great for experimenting or inspiration.
A beginner friendly HTML guide with examples and practice for learning web page structure.
Learn Flexbox with this clear visual guide that shows how to align, space, and order elements on a page. It’s full of examples that make it easy to see how changes affect your layout in real time.
A hands-on Flexbox demo with live results as you experiment.
A usability checklist to see if designs are simple and intuitive.
Check which HTML, CSS, or JS features work across different browsers.
A massive Q&A community where developers ask and answer real coding problems. If you get an error or need a clever solution, there’s a good chance someone already asked it here.