nodes' and edges' styles are defined in style classes

```
This works combining JS and CSS.

What is not possible is to define new styles at runtime. Even if this feature 
would be available, we would need some way to make those styles persistent. 
E.g. by storing them in the graph representation.
```

Original issue reported on code.google.com by `silh...@gmail.com` on 19 Jul 2010 at 11:47
