Ok.. No need to say. This is the famous and largest web development site for beginners and experts. There are so many tutorials in web scripting. A step by step lesson on how to create a good website.
What so special about this site is that it has its own editor - Try It Yourself where you can write the code and the output of the code will be generated straight away.
As you see in the above picture, the coding is on the left side while the output result is on the right side. This is a sample coding for HTML. Learning can be fun while you try and study yourself here.