Improve site layout.

text-fields were thin, because DOCTYPE hasn't been setted up. 
![before](https://dl.dropbox.com/u/2428018/Screenshots/0f.png) 
![before](https://dl.dropbox.com/u/2428018/Screenshots/0c.png) 

I've added html 5 doctype with `html5` calls and minor style improvements. ![now](https://dl.dropbox.com/u/2428018/Screenshots/0e.png)