RANKED5S.NET: a website I made to help people make team compositions!

Hello everyone! Im a web design student and got an assignment to create a site based on my interests. I have also played league since s1 so I decided to combine my two hobbies into ranked5s.net, a site for creating league of legends team compositions. This site was made over the course of the last 2 weeks during which i taught myself the basics of javascript so please be gentle! Any feedback or constructive critisism is welcome.