Malachi

1. Comunidade
2. Computing Platform Community Discussions
3. question- software building

Ka uses tons of different tools and resources to create, maintain and host their website. You can read all about it here: https://blog.khanacademy.org/engineering/

1. Comunidade
2. Computing Platform Community Discussions
3. Help With Floating clouds

on float: left you forgot too add a semicolon at the end