http://stackoverflow.com/
similarly to w3school, this website helps you find different html or css codes along with other helpful tips. I used this to design some things on the dating website we had to create.
www.cursors-4u.com
If you're looking for a snazzy cursor to use on your website then I recommend this website! There are a ton of different cursor options ranging from cartoons to animated cursors. Once you choose a cursor you like it gives you a couple options to the code you can copy. It could be html for any website, a tumblr blog, or a normal blog. If I ever wanted to add extra decoration or something fun to my website then I would definitely check out this cite for ideas.