Hey peeps. I was in the process of coding a new layout when I went on a really long hiatus. I remember that I was using some sort of website that taught coding for free with interactive lessons, but I cannot remember what it was called. I'm almost sure it was recommended to me by one of the players on here. Does anyone by chance know what the site might be called?

Was it codecademy.com?

I've been told this site a lot as it's a true favorites among the HP community {and possibly the one you're looking for} known as: http://www.w3schools.com/ 

I've never been told of this website on here but I have on other SIMS:

http://www.lissaexplains.com/

Was an awesome site as well as the one Euphony listed - I believe they were in the Designer's Assoc./Club in 2013. Anywho, hopefully these are what you're trying to remember or are just as helpful!  

Emblas Tutorials has some coding lessons, but they're not interactive. :/