Intermediate

Learn how to reduce DOM size, improve rendering performance, and keep complex front-end interfaces fast, accessible, and easier to maintain as they grow.

Learn how to preload fonts with the right link tag, crossorigin setting and format choices, so your web fonts load sooner without wasting bandwidth today.

Best practices for code reviews that help front-end teams catch bugs, share context and ship cleaner changes without turning feedback into a fight at all.

Why is JavaScript blocking rendering? Learn what actually stops the browser, when it matters, and how to fix render-blocking scripts.

A modern HTML elements guide for developers who want cleaner structure, better accessibility, and more meaningful markup without old habits.

HTML input types explained in plain English. Learn what each type does, when to use it, and the mistakes that make forms harder to use.

Learn how to defer JavaScript properly to improve page speed, avoid render blocking, and load scripts in the right order without breaking UX.

CSS Modules vs styled components: learn the real trade-offs in React styling, from performance and DX to scaling teams and design systems.