Im aware that Im a bit late... If I were you I would do some research myself. As oppose to using websites such as Codeacademy, which spend ages on one thing... I would venture the we b a bit more, look for a website that suits you and allow you to learn. From my experience, if you teach yourself it is a lot better than being taught by an automated website.
EG:
http://www.w3schools.com/html/
https://developer.mozilla.org/en-US/Learn/HTML
http://html.net/
http://learn.shayhowe.com/html-css/