Writing web apps in React or other JS frameworks doesn’t mean you don’t need to have a solid foundation of HTML and CSS. While you may be fine most of the time with basic knowledge, having more in-depth knowledge will help you create a much more accessible, robust and maintainable code. And in the end, deliver better products to your users. I have put together several concepts and practices I believe every front-end developer should know (not just JavaScript developers, but I often see th...
