It's a nice concept. But I don't see the necessity of this over writing and understanding HTML. - What complexity are you actually making easier? I still need

It's a nice concept. But I don't see the necessity of this over writing and understanding HTML. - What complexity are you actually making easier? I still need to know all the properties in order to set them to the right value. - Why is this easy for beginners? You don't learn the basics of HTML (or XML, for that matter). All you learn is an abstraction of HTML. - How is this improving readability? Nesting is still tab or space based. And syntax highlighting in almost all editors automatically focuses on the right parts.