Page does not load gracefully when javascript is disabled

[fabianvf]

If you visit cos.io with javascript disabled, the page does not render gracefully at all. This is very strange since it is just a static site. The main issues:

• Our logo does not load
• The drop down menus do not function, and when they are clicked, they direct you to nginx 404 pages

Since it is not difficult to achieve this functionality with just html/css, it may be worth it to fix it, at least enough that you can still navigate to all the pages linked in the header.