Re: <br> and generated-content

I've tried your both tries but they are not working as the legacy <br/> 
does.
Here is my test-case.

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From: "Alan Gresley" <alan@css-class.com>
Sent: Wednesday, July 02, 2008 8:47 AM
To: <robert@ocallahan.org>
Cc: "Brad Kemper" <brkemper@comcast.net>; "Boris Zbarsky" 
<bzbarsky@mit.edu>; "Tab Atkins Jr." <jackalmage@gmail.com>; 
<www-style@w3.org>
Subject: Re: <br> and generated-content

>
> Robert O'Callahan wrote:
>> On Wed, Jul 2, 2008 at 2:41 PM, Brad Kemper <brkemper@comcast.net> wrote:
>>
>>> br { height:0; display:block; }
>>>
>>> It breaks lines by creating a zero-height block in the middle of inline
>>> content. Like as with most browsers, two of them has the same effect as 
>>> one,
>>> unless there is some non-collapsing character in-between, such as a 
>>> &nobr;
>>>
>>
>> Huh? <br><br> is not equivalent to <br> today.
>>
>> Rob
>
>
> Rob, I don't understand your reasoning here. We can have <br><br><br> 
> forever and they all will take up zero height with height:0.
>
>
> Alan
>
> http://css-class.com/
>
>