Some cleaning up

- removed the image ids, replaced them with #content p {} in CSS
instead.
- <spanned> Gabriela Schwartz, I’m gonna see if I can interactivize
this.
- removed unnecessary code from js; fixed js so all steps disappear
when scrolling back up
Merge branch 'master' of https://github.com/yeamal/UnclassProject

Conflicts:
	index.html