[css3-syntax] `}` in selector mode with three ore more open rules

Hi,

In 3.5.6. Selector mode:

> } token
>
> If the stack of open rules has three or more items on it, pop the
> current rule. Switch to the current rule's content mode.

I just don’t understand this part. Why three? When is this behavior 
useful? What does it even mean?

-- 
Simon Sapin

Received on Saturday, 26 January 2013 16:06:30 UTC