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Re: [css3-background]Positioning of box-shadow blurs?

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Wed, 28 Apr 2010 13:50:40 -0700
Message-ID: <p2odd0fbad1004281350y1fdd2c89wf5fd8605425e2e34@mail.gmail.com>
To: Alex Meiburg <timeroot.alex@gmail.com>
Cc: www-style@w3.org
On Tue, Apr 27, 2010 at 9:58 PM, Alex Meiburg <timeroot.alex@gmail.com> wrote:
> I was reading more through the box-shadow spec, and the part on the blurring
> seemed unclear to me. Will the blurs be on the "outside" of the regular
> shadow, the "inside", or "centered"? So, if we have a 400px wide box, with a
> blur radius of 10px and no spread, will the resulting shadow (from the very
> lightest left pixel to the very lightest right pixel) be 400px wide
> (inside), 405px wide (centered), or 410px wide (outside)? Inside would have
> the effect of lightening the inside of the shadow; centered would be like
> "smudging" in bother directions from the otherwise hard shadow; and outside
> would be adding extra darking to the area around the shadow.

It's "outside".  The solid portion of the shadow is unaffected by the blur.

Received on Wednesday, 28 April 2010 20:51:36 UTC

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