Codeacademy is one of the best websites through which you can learn coding HTML and CSS scripts. I learned Html through this website when I was introduced to the subject web development in my BTech. And the best thing is it’s for free. All the content is very concise and they dont charge you a penny for it. You can practice online on this website and build your basics in html and css. The website is user friendly and with a simple interface. Doesnt take much time in loading.