Trouble with free website services is they might not have a welcoming terms or conditions of services. Also, if you want to host dynamic content, you can add setting up an at home server and learning how to host files to your todo list. Then applying that with file size limitations ect. to a dynamic website. Web frameworks will let you do a lot client side, and using the browser's web storage object gives you the potential to make simple games.
Otherwise, you can play with html and css on w3schools to realize what you can do clientside.
--1/22/16
For various reasons I am looking into a web host that can host adult stuff (mainly because, I want to make some). For Tank's stuff this might not be an issue, as my memory tells me Lilly is less interested in the erotic side of things. But, you need to review a web pages acceptable use policy.
Even if you google 'adult web hosting' some web hosts that get lumped into that category have Acceptable Use Policies that specifically forbid... how did one put it? "selling, or otherwise disseminating, pornography or other erotic material, regardless of its literary merit;" Others ban things like rpg's, which makes it iffy for me because I like the idea of making games and 'toy' rpg's. I know they really mean mmo-rpg's, but I like the idea of being legally clean.