HTML is very simple, there are, in fact, several constructs that make up the core of the core. But he is considered dead, so the meaning of his study is controversial.
I think also HTML is very complex.I think HTML is very complex.
In my opinion, better start to learn PHP. After it, you will learn HTML easy.
I do not think it is easy. Now everyone is engaged in this if it were so. It is quite difficult. Especially if you need it for specific purposes. If you need your website, then it is better to entrust this business to professionals.