W3C home > Mailing lists > Public > www-style@w3.org > March 2010

Re: vendor prefix properties diverging from official properties

From: Boris Zbarsky <bzbarsky@MIT.EDU>
Date: Tue, 02 Mar 2010 18:15:23 -0500
Message-ID: <4B8D9C0B.5030004@mit.edu>
To: Sylvain Galineau <sylvaing@microsoft.com>
CC: "www-style@w3.org" <www-style@w3.org>
On 3/2/10 5:57 PM, Sylvain Galineau wrote:
> -w3c-background-origin: border-box;
>
> But if you then switched to an earlier implementation that was based on an older
> draft [2], that browser would expect :
>
> -w3c-background-origin: border;
>
> You couldn't just specify both; as both browsers key off the same property name, only
> one of them would win and do what's expected.

Actually, assuming the browsers involved discard unknown declarations 
like they're supposed to, this would work (in either order, even):

   -w3c-background-origin: border-box;
   -w3c-background-origin: border;

But in a situation in which the meaning of the syntax changed without 
changing the allowed value set you would be absolutely correct.

-Boris
Received on Tuesday, 2 March 2010 23:16:00 GMT

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