What's the secret to static class members

[Mike Parker via Digitalmars-d-learn]

On Wednesday, 29 June 2016 at 15:33:58 UTC, Guido wrote:

> The problem is actually much more profound. The classes need to 
> be declared outside the main() scope. WTF?!?!?!

It's not going to work anywhere if you type 'Class' as opposed to 
'class'. Types can be declared in any scope:

```
void main() {
     class Foo {
         static int x = 10;
     }

     assert(Foo.x == 10);
}
```