CSS Updates
Would there be any interest in me spending some time improving the css?

I know not having JS is must, but there are still plenty of frameworks out there that support pure css. 

Here's what I came up with after just an hour or so of playing around:


![xmrchain net explore moneroworld com](https://cloud.githubusercontent.com/assets/7861465/25059934/2d557688-2156-11e7-82ef-bf6e8cc6f7f0.png)

Do you agree this is better? It's only a handful of lines changed outside of bringing in a single, minified css file (9kb) https://milligram.github.io/. Obviously there is a lot of room for improvement, but my goal here is to make helpful style updates with as little code changes as possible.

If this sounds good, I can have a PR up shortly. 
